diff --git a/layout.lua b/layout.lua
index efe30ce..a0969d2 100644
--- a/layout.lua
+++ b/layout.lua
@@ -174,16 +174,17 @@ end
 size_getters.scroll_container = size_getters.container
 
 function size_getters.label(node)
-    -- Labels always have a distance of 0.5 between each line regardless of the
-    -- font size
-
     local style = node.style
     if node.h and style and style.font_size then
         core.log("warning", "[flow] Labels with a fixed height set will be " ..
             "positioned as if font_size was not specified for backwards " ..
-            "compatibility reasons.")
+            "compatibility reasons. This behaviour is deprecated, please " ..
+            "avoid relying on it if possible.")
         style = nil
     end
+
+    -- Labels always have a distance of 0.5 between each line regardless of the
+    -- font size
     local w, h, font_height = get_label_size(node.label, style, 0.5)
     node._flow_font_height = font_height
     return w, h