diff --git a/widget/src/gtk/nsWindow.cpp b/widget/src/gtk/nsWindow.cpp
index 4a007172bacb..fd0f22a6406a 100644
--- a/widget/src/gtk/nsWindow.cpp
+++ b/widget/src/gtk/nsWindow.cpp
@@ -406,7 +406,10 @@ NS_IMETHODIMP nsWindow::CaptureRollupEvents(nsIRollupListener * aListener,
       {
         mIsGrabbing = PR_TRUE;
         mGrabWindow = this;
-        int ret = gdk_pointer_grab (GDK_SUPERWIN(mSuperWin)->bin_window, PR_TRUE,(GdkEventMask)
+#ifdef DEBUG_pavlov
+        int ret = 
+#endif
+        gdk_pointer_grab (GDK_SUPERWIN(mSuperWin)->bin_window, PR_TRUE,(GdkEventMask)
                                     (GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
                                      GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
                                      GDK_POINTER_MOTION_MASK),