diff --git a/src/as/com/threerings/flex/ChatControl.as b/src/as/com/threerings/flex/ChatControl.as
index 9beebc21..aa896000 100644
--- a/src/as/com/threerings/flex/ChatControl.as
+++ b/src/as/com/threerings/flex/ChatControl.as
@@ -117,7 +117,7 @@ public class ChatControl extends HBox
     /**
      * Configures the background color of the text entry area.
      */
-    public function setChatColor (color :int) :void
+    public function setChatColor (color :uint) :void
     {
         _txt.setStyle("backgroundColor", color);
     }