diff --git a/Source/NSWindow.m b/Source/NSWindow.m
index 6eff6a0d7..1bc66682f 100644
--- a/Source/NSWindow.m
+++ b/Source/NSWindow.m
@@ -189,7 +189,7 @@ static NSRecursiveLock	*windowsLock;
       RELEASE([content_view superview]);	/* Release the window view */
       RELEASE(content_view);
     }
-
+  [self setFrameAutosaveName: nil];
   TEST_RELEASE(_fieldEditor);
   TEST_RELEASE(background_color);
   TEST_RELEASE(represented_filename);