diff --git a/elements.lua b/elements.lua
index 1525c19..e9b4f24 100644
--- a/elements.lua
+++ b/elements.lua
@@ -23,40 +23,44 @@ a[16] = {"bgcolor", "string"}
 a[17] = {"fontcolor", "string"}
 a[18] = {"gui_element_name", "string"}
 a[19] = {"texture_name", "string"}
-a[20] = {a[4], a[3], a[19]}
-a[21] = {"name", "string"}
-a[22] = {"frame_count", "number"}
-a[23] = {"frame_duration", "number"}
-a[24] = {"mesh", "string"}
-a[25] = {{{"textures", "string"}, "..."}}
-a[26] = {{"rotation_x", "number"}, {"rotation_y", "number"}}
-a[27] = {"continuous", "boolean"}
-a[28] = {"mouse_control", "boolean"}
-a[29] = {{"frame_loop_begin", "number"}, {"frame_loop_end", "number"}}
-a[30] = {"item_name", "string"}
-a[31] = {"fullscreen", "fullscreen"}
-a[32] = {"auto_clip", "boolean"}
-a[33] = {"middle_x", "number"}
-a[34] = {"middle_y", "number"}
-a[35] = {"label", "string"}
-a[36] = {{a[4], a[3], a[21], a[35]}}
-a[37] = {"default", "string"}
-a[38] = {a[4], a[3], a[21], a[35], a[37]}
-a[39] = {{a[4], a[35]}}
-a[40] = {"noclip", "boolean"}
-a[41] = {"drawborder", "boolean"}
-a[42] = {{a[4], a[3], a[19], a[21], a[35], a[40], a[41], {"pressed_texture_name", "string"}}, {a[4], a[3], a[19], a[21], a[35], a[40], a[41]}, {a[4], a[3], a[19], a[21], a[35]}}
-a[43] = {{{"listelems", "string"}, "..."}}
-a[44] = {"selected_idx", "number"}
-a[45] = {"transparent", "boolean"}
-a[46] = {{{"captions", "string"}, "..."}}
-a[47] = {"current_tab", "string"}
-a[48] = {"draw_border", "boolean"}
-a[49] = {{{"items", "string"}, "..."}}
-a[50] = {"index_event", "boolean"}
-a[51] = {{"opts", "table"}, "..."}
-a[52] = {{a[51]}}
-a[53] = {{"props", "table"}, "..."}
-a[54] = {a[21]}
-a[55] = {{{{{"selectors", "string"}, "..."}}, a[53]}, {a[54], a[53]}}
-return {["formspec_version"] = {{{"version", "number"}}}, ["size"] = {{a[3]}, {{a[1], a[2], {"fixed_size", "boolean"}}}}, ["position"] = a[5], ["anchor"] = a[5], ["padding"] = a[5], ["no_prepend"] = a[7], ["real_coordinates"] = {{{"bool", "boolean"}}}, ["container"] = a[5], ["container_end"] = a[7], ["scroll_container"] = {{a[4], a[3], a[8], a[9], {"scroll_factor", "number"}}, {a[4], a[3], a[8], a[9]}}, ["scroll_container_end"] = a[7], ["list"] = {{a[10], a[11], a[4], a[3], {"starting_item_index", "number"}}, {a[10], a[11], a[4], a[3]}}, ["listring"] = {{a[10], a[11]}, a[6]}, ["listcolors"] = {{a[12], a[13], a[14], {"tooltip_bgcolor", "string"}, {"tooltip_fontcolor", "string"}}, {a[12], a[13], a[14]}, {a[12], a[13]}}, ["tooltip"] = {{a[4], a[3], a[15], a[16], a[17]}, {a[4], a[3], a[15], a[16]}, {a[18], a[15], a[16], a[17]}, {a[4], a[3], a[15]}, {a[18], a[15], a[16]}, {a[18], a[15]}}, ["image"] = {a[20]}, ["animated_image"] = {{a[4], a[3], a[21], a[19], a[22], a[23], {"frame_start", "number"}}, {a[4], a[3], a[21], a[19], a[22], a[23]}}, ["model"] = {{a[4], a[3], a[21], a[24], a[25], a[26], a[27], a[28], a[29], {"animation_speed", "number"}}, {a[4], a[3], a[21], a[24], a[25], a[26], a[27], a[28], a[29]}, {a[4], a[3], a[21], a[24], a[25], a[26], a[27], a[28]}, {a[4], a[3], a[21], a[24], a[25], a[26], a[27]}, {a[4], a[3], a[21], a[24], a[25], a[26]}, {a[4], a[3], a[21], a[24], a[25]}}, ["item_image"] = {{a[4], a[3], a[30]}}, ["bgcolor"] = {{a[16], a[31], {"fbgcolor", "string"}}, {a[16], a[31]}, {a[16]}}, ["background"] = {{a[4], a[3], a[19], a[32]}, a[20]}, ["background9"] = {{a[4], a[3], a[19], a[32], {a[33], a[34], {"middle_x2", "number"}, {"middle_y2", "number"}}}, {a[4], a[3], a[19], a[32], {a[33], a[34]}}, {a[4], a[3], a[19], a[32], {a[33]}}}, ["pwdfield"] = a[36], ["field"] = {a[38], {a[21], a[35], a[37]}}, ["field_close_on_enter"] = {{a[21], {"close_on_enter", "boolean"}}}, ["textarea"] = {a[38]}, ["label"] = a[39], ["hypertext"] = {{a[4], a[3], a[21], {"text", "string"}}}, ["vertlabel"] = a[39], ["button"] = a[36], ["image_button"] = a[42], ["item_image_button"] = {{a[4], a[3], a[30], a[21], a[35]}}, ["button_exit"] = a[36], ["image_button_exit"] = a[42], ["textlist"] = {{a[4], a[3], a[21], a[43], a[44], a[45]}, {a[4], a[3], a[21], a[43], a[44]}, {a[4], a[3], a[21], a[43]}}, ["tabheader"] = {{a[4], a[2], a[21], a[46], a[47], a[45], a[48]}, {a[4], a[3], a[21], a[46], a[47], a[45], a[48]}, {a[4], a[21], a[46], a[47], a[45], a[48]}, {a[4], a[2], a[21], a[46], a[47], a[45]}, {a[4], a[3], a[21], a[46], a[47], a[45]}, {a[4], a[21], a[46], a[47], a[45]}, {a[4], a[2], a[21], a[46], a[47]}, {a[4], a[3], a[21], a[46], a[47]}, {a[4], a[21], a[46], a[47]}}, ["box"] = {{a[4], a[3], {"color", "string"}}}, ["dropdown"] = {{a[4], a[3], a[21], a[49], a[44], a[50]}, {a[4], a[1], a[21], a[49], a[44], a[50]}, {a[4], a[3], a[21], a[49], a[44]}, {a[4], a[1], a[21], a[49], a[44]}}, ["checkbox"] = {{a[4], a[21], a[35], {"selected", "boolean"}}, {a[4], a[21], a[35]}}, ["scrollbar"] = {{a[4], a[3], a[9], a[21], {"value", "number"}}}, ["scrollbaroptions"] = a[52], ["table"] = {{a[4], a[3], a[21], {{{"cells", "string"}, "..."}}, a[44]}}, ["tableoptions"] = a[52], ["tablecolumns"] = {{{{{"type", "string"}, a[51]}, "..."}}}, ["style"] = a[55], ["style_type"] = a[55], ["set_focus"] = {{a[21], {"force", "boolean"}}, a[54]}}
+a[20] = {"middle_x", "number"}
+a[21] = {"middle_y", "number"}
+a[22] = {a[20], a[21], {"middle_x2", "number"}, {"middle_y2", "number"}}
+a[23] = {a[20], a[21]}
+a[24] = {a[20]}
+a[25] = {a[4], a[3], a[19]}
+a[26] = {"name", "string"}
+a[27] = {"frame_count", "number"}
+a[28] = {"frame_duration", "number"}
+a[29] = {"frame_start", "number"}
+a[30] = {"mesh", "string"}
+a[31] = {{{"textures", "string"}, "..."}}
+a[32] = {{"rotation_x", "number"}, {"rotation_y", "number"}}
+a[33] = {"continuous", "boolean"}
+a[34] = {"mouse_control", "boolean"}
+a[35] = {{"frame_loop_begin", "number"}, {"frame_loop_end", "number"}}
+a[36] = {"item_name", "string"}
+a[37] = {"fullscreen", "fullscreen"}
+a[38] = {"auto_clip", "boolean"}
+a[39] = {"label", "string"}
+a[40] = {{a[4], a[3], a[26], a[39]}}
+a[41] = {"default", "string"}
+a[42] = {a[4], a[3], a[26], a[39], a[41]}
+a[43] = {{a[4], a[39]}}
+a[44] = {"noclip", "boolean"}
+a[45] = {"drawborder", "boolean"}
+a[46] = {{a[4], a[3], a[19], a[26], a[39], a[44], a[45], {"pressed_texture_name", "string"}}, {a[4], a[3], a[19], a[26], a[39], a[44], a[45]}, {a[4], a[3], a[19], a[26], a[39]}}
+a[47] = {{{"listelems", "string"}, "..."}}
+a[48] = {"selected_idx", "number"}
+a[49] = {"transparent", "boolean"}
+a[50] = {{{"captions", "string"}, "..."}}
+a[51] = {"current_tab", "string"}
+a[52] = {"draw_border", "boolean"}
+a[53] = {{{"items", "string"}, "..."}}
+a[54] = {"index_event", "boolean"}
+a[55] = {{"opts", "table"}, "..."}
+a[56] = {{a[55]}}
+a[57] = {{"props", "table"}, "..."}
+a[58] = {a[26]}
+a[59] = {{{{{"selectors", "string"}, "..."}}, a[57]}, {a[58], a[57]}}
+return {["formspec_version"] = {{{"version", "number"}}}, ["size"] = {{a[3]}, {{a[1], a[2], {"fixed_size", "boolean"}}}}, ["position"] = a[5], ["anchor"] = a[5], ["padding"] = a[5], ["no_prepend"] = a[7], ["real_coordinates"] = {{{"bool", "boolean"}}}, ["container"] = a[5], ["container_end"] = a[7], ["scroll_container"] = {{a[4], a[3], a[8], a[9], {"scroll_factor", "number"}}, {a[4], a[3], a[8], a[9]}}, ["scroll_container_end"] = a[7], ["list"] = {{a[10], a[11], a[4], a[3], {"starting_item_index", "number"}}, {a[10], a[11], a[4], a[3]}}, ["listring"] = {{a[10], a[11]}, a[6]}, ["listcolors"] = {{a[12], a[13], a[14], {"tooltip_bgcolor", "string"}, {"tooltip_fontcolor", "string"}}, {a[12], a[13], a[14]}, {a[12], a[13]}}, ["tooltip"] = {{a[4], a[3], a[15], a[16], a[17]}, {a[4], a[3], a[15], a[16]}, {a[18], a[15], a[16], a[17]}, {a[4], a[3], a[15]}, {a[18], a[15], a[16]}, {a[18], a[15]}}, ["image"] = {{a[4], a[3], a[19], a[22]}, {a[4], a[3], a[19], a[23]}, {a[4], a[3], a[19], a[24]}, a[25]}, ["animated_image"] = {{a[4], a[3], a[26], a[19], a[27], a[28], a[29], a[22]}, {a[4], a[3], a[26], a[19], a[27], a[28], a[29], a[23]}, {a[4], a[3], a[26], a[19], a[27], a[28], a[29], a[24]}, {a[4], a[3], a[26], a[19], a[27], a[28], a[29]}, {a[4], a[3], a[26], a[19], a[27], a[28]}}, ["model"] = {{a[4], a[3], a[26], a[30], a[31], a[32], a[33], a[34], a[35], {"animation_speed", "number"}}, {a[4], a[3], a[26], a[30], a[31], a[32], a[33], a[34], a[35]}, {a[4], a[3], a[26], a[30], a[31], a[32], a[33], a[34]}, {a[4], a[3], a[26], a[30], a[31], a[32], a[33]}, {a[4], a[3], a[26], a[30], a[31], a[32]}, {a[4], a[3], a[26], a[30], a[31]}}, ["item_image"] = {{a[4], a[3], a[36]}}, ["bgcolor"] = {{a[16], a[37], {"fbgcolor", "string"}}, {a[16], a[37]}, {a[16]}}, ["background"] = {{a[4], a[3], a[19], a[38]}, a[25]}, ["background9"] = {{a[4], a[3], a[19], a[38], a[22]}, {a[4], a[3], a[19], a[38], a[23]}, {a[4], a[3], a[19], a[38], a[24]}}, ["pwdfield"] = a[40], ["field"] = {a[42], {a[26], a[39], a[41]}}, ["field_close_on_enter"] = {{a[26], {"close_on_enter", "boolean"}}}, ["textarea"] = {a[42]}, ["label"] = a[43], ["hypertext"] = {{a[4], a[3], a[26], {"text", "string"}}}, ["vertlabel"] = a[43], ["button"] = a[40], ["image_button"] = a[46], ["item_image_button"] = {{a[4], a[3], a[36], a[26], a[39]}}, ["button_exit"] = a[40], ["image_button_exit"] = a[46], ["textlist"] = {{a[4], a[3], a[26], a[47], a[48], a[49]}, {a[4], a[3], a[26], a[47], a[48]}, {a[4], a[3], a[26], a[47]}}, ["tabheader"] = {{a[4], a[2], a[26], a[50], a[51], a[49], a[52]}, {a[4], a[3], a[26], a[50], a[51], a[49], a[52]}, {a[4], a[26], a[50], a[51], a[49], a[52]}, {a[4], a[2], a[26], a[50], a[51], a[49]}, {a[4], a[3], a[26], a[50], a[51], a[49]}, {a[4], a[26], a[50], a[51], a[49]}, {a[4], a[2], a[26], a[50], a[51]}, {a[4], a[3], a[26], a[50], a[51]}, {a[4], a[26], a[50], a[51]}}, ["box"] = {{a[4], a[3], {"color", "string"}}}, ["dropdown"] = {{a[4], a[3], a[26], a[53], a[48], a[54]}, {a[4], a[1], a[26], a[53], a[48], a[54]}, {a[4], a[3], a[26], a[53], a[48]}, {a[4], a[1], a[26], a[53], a[48]}}, ["checkbox"] = {{a[4], a[26], a[39], {"selected", "boolean"}}, {a[4], a[26], a[39]}}, ["scrollbar"] = {{a[4], a[3], a[9], a[26], {"value", "number"}}}, ["scrollbaroptions"] = a[56], ["table"] = {{a[4], a[3], a[26], {{{"cells", "string"}, "..."}}, a[48]}}, ["tableoptions"] = a[56], ["tablecolumns"] = {{{{{"type", "string"}, a[55]}, "..."}}}, ["style"] = a[59], ["style_type"] = a[59], ["set_focus"] = {{a[26], {"force", "boolean"}}, a[58]}}
diff --git a/elements.yaml b/elements.yaml
index 17a8527..5cd377a 100644
--- a/elements.yaml
+++ b/elements.yaml
@@ -8,6 +8,40 @@ anchor:
 - - - [x, number]
     - [y, number]
 animated_image:
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [name, string]
+  - [texture_name, string]
+  - [frame_count, number]
+  - [frame_duration, number]
+  - [frame_start, number]
+  - - [middle_x, number]
+    - [middle_y, number]
+    - [middle_x2, number]
+    - [middle_y2, number]
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [name, string]
+  - [texture_name, string]
+  - [frame_count, number]
+  - [frame_duration, number]
+  - [frame_start, number]
+  - - [middle_x, number]
+    - [middle_y, number]
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [name, string]
+  - [texture_name, string]
+  - [frame_count, number]
+  - [frame_duration, number]
+  - [frame_start, number]
+  - - [middle_x, number]
 - - - [x, number]
     - [y, number]
   - - [w, number]
@@ -162,6 +196,28 @@ hypertext:
   - [name, string]
   - [text, string]
 image:
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [texture_name, string]
+  - - [middle_x, number]
+    - [middle_y, number]
+    - [middle_x2, number]
+    - [middle_y2, number]
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [texture_name, string]
+  - - [middle_x, number]
+    - [middle_y, number]
+- - - [x, number]
+    - [y, number]
+  - - [w, number]
+    - [h, number]
+  - [texture_name, string]
+  - - [middle_x, number]
 - - - [x, number]
     - [y, number]
   - - [w, number]
diff --git a/make_elements.py b/make_elements.py
index f5122a6..b4e72ef 100755
--- a/make_elements.py
+++ b/make_elements.py
@@ -84,10 +84,15 @@ def hook(name, *, passive=False):
         return func
     return add_hook
 
-# Fix background9
+# Fix 9-slice co-ordinates
 @hook('background9')
+@hook('image', passive=True)
+@hook('animated_image', passive=True)
 def _background9_hook(params):
-    assert params[-1] == ('middle', 'string')
+    if params[-1] != ('middle', 'string'):
+        assert ('middle', 'string') not in params
+        return
+
     params[-1] = param = []
     param.append(('middle_x', 'number'))
     yield params
@@ -96,6 +101,7 @@ def _background9_hook(params):
     param.append(('middle_x2', 'number'))
     param.append(('middle_y2', 'number'))
     yield params
+    del params[-1]
 
 # Fix bgcolor
 @hook('bgcolor')
diff --git a/tests.lua b/tests.lua
index 948db54..236bca0 100644
--- a/tests.lua
+++ b/tests.lua
@@ -111,6 +111,9 @@ local fs = [[
     image_button_exit[1,2;3,4;img.png;name;label]
     image_button_exit[1,2;3,4;img.png;name;label;false;true]
     image_button_exit[1,2;3,4;img.png;name;label;true;false;img2.png]
+    image[1,2;3,4;air.png;5]
+    image[1,2;3,4;air.png;5,6]
+    image[1,2;3,4;air.png;5,6,7,8]
 ]]
 fs = ('\n' .. fs):gsub('\n[ \n]*', '')
 
@@ -377,6 +380,37 @@ test_parse_unparse(fs, {
         drawborder = false,
         pressed_texture_name = "img2.png",
     },
+    {
+        type = "image",
+        x = 1,
+        y = 2,
+        w = 3,
+        h = 4,
+        texture_name = "air.png",
+        middle_x = 5,
+    },
+    {
+        type = "image",
+        x = 1,
+        y = 2,
+        w = 3,
+        h = 4,
+        texture_name = "air.png",
+        middle_x = 5,
+        middle_y = 6,
+    },
+    {
+        type = "image",
+        x = 1,
+        y = 2,
+        w = 3,
+        h = 4,
+        texture_name = "air.png",
+        middle_x = 5,
+        middle_y = 6,
+        middle_x2 = 7,
+        middle_y2 = 8,
+    },
 })
 
 local function remove_trailing_params(elem_s, elem, ...)