diff --git a/extra/colors/colors.factor b/extra/colors/colors.factor
index f88fe6eb05..77a1f46c87 100644
--- a/extra/colors/colors.factor
+++ b/extra/colors/colors.factor
@@ -27,8 +27,6 @@ M: hsva >rgba ( hsva -- rgba )
 
 M: gray >rgba ( gray -- rgba ) [ gray>> dup dup ] [ alpha>> ] bi rgba boa ;
 
-! M: array >rgba ( array -- rgba ) first4 rgba boa ;
-
 M: color red>>   ( color -- red   ) >rgba red>>   ;
 M: color green>> ( color -- green ) >rgba green>> ;
 M: color blue>>  ( color -- blue  ) >rgba blue>>  ;