diff --git a/AppKit/CPWindow/_CPStandardWindowView.j b/AppKit/CPWindow/_CPStandardWindowView.j
index b67ca1d4c..48bb5d858 100644
--- a/AppKit/CPWindow/_CPStandardWindowView.j
+++ b/AppKit/CPWindow/_CPStandardWindowView.j
@@ -180,6 +180,7 @@ var _CPStandardWindowViewBodyBackgroundColor                = nil,
         {
             _closeButton = [[CPButton alloc] initWithFrame:CGRectMake(8.0, 8.0, 16.0, 16.0)];
 
+            [_closeButton setButtonType:CPMomentaryChangeButton];
             [_closeButton setBordered:NO];
             [self _updateCloseButton];