diff --git a/AppKit/CPWindow/CPWindow.j b/AppKit/CPWindow/CPWindow.j
index 75650792f..9e7eac0dc 100644
--- a/AppKit/CPWindow/CPWindow.j
+++ b/AppKit/CPWindow/CPWindow.j
@@ -1362,6 +1362,9 @@ CPTexturedBackgroundWindowMask
 */
 - (void)center
 {
+    if (_isFullPlatformWindow)
+        return;
+
     var size = [self frame].size,
         containerSize = [CPPlatform isBrowser] ? [_platformWindow contentBounds].size : [[self screen] visibleFrame].size;