diff --git a/src/image/image.go b/src/image/image.go
index e0ecd92baa..951cc8ae05 100644
--- a/src/image/image.go
+++ b/src/image/image.go
@@ -46,9 +46,9 @@ type Image interface {
 }
 
 // PalettedImage is an image whose colors may come from a limited palette.
-// If m is a PalettedImage and m.ColorModel() returns a PalettedColorModel p,
+// If m is a PalettedImage and m.ColorModel() returns a color.Palette p,
 // then m.At(x, y) should be equivalent to p[m.ColorIndexAt(x, y)]. If m's
-// color model is not a PalettedColorModel, then ColorIndexAt's behavior is
+// color model is not a color.Palette, then ColorIndexAt's behavior is
 // undefined.
 type PalettedImage interface {
 	// ColorIndexAt returns the palette index of the pixel at (x, y).