diff --git a/mozilla/widget/src/gtk/nsWindow.cpp b/mozilla/widget/src/gtk/nsWindow.cpp
index 05cbdedfe99..165d686d7cf 100644
--- a/mozilla/widget/src/gtk/nsWindow.cpp
+++ b/mozilla/widget/src/gtk/nsWindow.cpp
@@ -72,7 +72,6 @@ nsresult nsWindow::QueryInterface(const nsIID& aIID, void** aInstancePtr)
 nsWindow::nsWindow() 
 {
   NS_INIT_REFCNT();
-  strcpy(gInstanceClassName, "nsWindow");
   mFontMetrics = nsnull;
   mShell = nsnull;
   mVBox = nsnull;
diff --git a/mozilla/widget/src/gtk/nsWindow.h b/mozilla/widget/src/gtk/nsWindow.h
index 5900ee320c5..e69b8b416e1 100644
--- a/mozilla/widget/src/gtk/nsWindow.h
+++ b/mozilla/widget/src/gtk/nsWindow.h
@@ -89,8 +89,6 @@ public:
   // in nsWidget now
   //    virtual  PRBool OnResize(nsSizeEvent &aEvent);
 
-    char gInstanceClassName[256];
-  
 protected:
 
   virtual void InitCallbacks(char * aName = nsnull);