diff --git a/src/hb-ot-color-colr-table.hh b/src/hb-ot-color-colr-table.hh
index 7c5c35d8c..b480af51d 100644
--- a/src/hb-ot-color-colr-table.hh
+++ b/src/hb-ot-color-colr-table.hh
@@ -47,7 +47,7 @@ struct LayerRecord
 
   public:
   GlyphID	glyphId;	/* Glyph ID of layer glyph */
-  HBUINT16	colorIdx;	/* Index value to use with a
+  Index		colorIdx;	/* Index value to use with a
 				 * selected color palette.
 				 * An index value of 0xFFFF
 				 * is a special case indicating