diff --git a/AppKit/CPColorPanel.j b/AppKit/CPColorPanel.j
index c30c07cab..e8a9320eb 100644
--- a/AppKit/CPColorPanel.j
+++ b/AppKit/CPColorPanel.j
@@ -485,7 +485,7 @@ var CPColorPanelSwatchesCookie = "CPColorPanelSwatchesCookie";
 
     var cookieValue = eval(cookieValue);
 
-    return [cookieValue arrayByApplyingBlock:function(value, _)
+    return [cookieValue arrayByApplyingBlock:function(value)
     {
         return [CPColor colorWithHexString:value];
     }];