diff --git a/AppKit/_CPPopoverWindow.j b/AppKit/_CPPopoverWindow.j
index 899fab08b..593bd7dc6 100644
--- a/AppKit/_CPPopoverWindow.j
+++ b/AppKit/_CPPopoverWindow.j
@@ -588,7 +588,10 @@ var _CPPopoverWindow_shouldClose_    = 1 << 4,
 {
     // Make absolutely sure no dangling event listeners are left
 #if PLATFORM(DOM)
-    _DOMElement.removeEventListener(CPBrowserStyleProperty("transitionend"), _orderOutTransitionFunction, YES);
+    if (_animates && _browserAnimates)
+    {
+        _DOMElement.removeEventListener(CPBrowserStyleProperty("transitionend"), _orderOutTransitionFunction, YES);
+    }
 #endif
 
     [self _removeFrameObserver];