diff --git a/src/as/com/threerings/flex/ChatDisplayBox.as b/src/as/com/threerings/flex/ChatDisplayBox.as
index d578a54c..bde6849b 100644
--- a/src/as/com/threerings/flex/ChatDisplayBox.as
+++ b/src/as/com/threerings/flex/ChatDisplayBox.as
@@ -59,8 +59,7 @@ public class ChatDisplayBox extends TextArea
     }
 
     // documentation inherited from interface ChatDisplay
-    public function displayMessage (
-        msg :ChatMessage, alreadyDisplayed :Boolean) :Boolean
+    public function displayMessage (msg :ChatMessage) :void
     {
         if (!_scrollBot) {
             _scrollBot = (verticalScrollPosition == maxVerticalScrollPosition);
@@ -72,7 +71,6 @@ public class ChatDisplayBox extends TextArea
                 (msg as UserMessage).speaker + "&gt;</font> ";
         }
         this.htmlText += msg.message;
-        return true;
     }
 
     // handle us being added or removed from the stage