diff --git a/AppKit/CPPopUpButton.j b/AppKit/CPPopUpButton.j
index 9e0131bf3c..9f6d1092a1 100644
--- a/AppKit/CPPopUpButton.j
+++ b/AppKit/CPPopUpButton.j
@@ -476,7 +476,7 @@ var CPPopUpButtonArrowsImage = nil;
 */
 - (int)indexOfItemWithRepresentedObject:(id)anObject
 {
-    return [_menu indexOfItemWithRepresentedObejct:anObject];
+    return [_menu indexOfItemWithRepresentedObject:anObject];
 }
 
 /*!