diff --git a/AppKit/CPPopover.j b/AppKit/CPPopover.j
index 689249477..c3d664707 100644
--- a/AppKit/CPPopover.j
+++ b/AppKit/CPPopover.j
@@ -274,7 +274,7 @@ var CPPopoverDelegate_popover_willShow_     = 1 << 0,
 #pragma mark Delegates
 
 /*! @ignore */
-- (BOOL)didAttachedWindowShouldClose:(_CPAttachedWindow)anAttachedWindow
+- (BOOL)attachedWindowShouldClose:(_CPAttachedWindow)anAttachedWindow
 {
     [self close];
 
diff --git a/AppKit/_CPAttachedWindow.j b/AppKit/_CPAttachedWindow.j
index 0759ac4cb..54dd524eb 100644
--- a/AppKit/_CPAttachedWindow.j
+++ b/AppKit/_CPAttachedWindow.j
@@ -408,8 +408,8 @@ CPPopoverAppearanceHUD      = 1;
 {
     if (_closeOnBlur && !_isClosed)
     {
-        if (!_delegate || ([_delegate respondsToSelector:@selector(didAttachedWindowShouldClose:)]
-            && [_delegate didAttachedWindowShouldClose:self]))
+        if (!_delegate || ([_delegate respondsToSelector:@selector(attachedWindowShouldClose:)]
+            && [_delegate attachedWindowShouldClose:self]))
         [self close];
     }
 }