diff --git a/widget/src/os2/nsWidgetFactory.cpp b/widget/src/os2/nsWidgetFactory.cpp
index 0c50a805caa1..2d3c2a4fdf21 100644
--- a/widget/src/os2/nsWidgetFactory.cpp
+++ b/widget/src/os2/nsWidgetFactory.cpp
@@ -56,7 +56,6 @@
 #include "nsScrollbar.h"
 #include "nsSound.h"
 #include "nsToolkit.h"
-#include "nsModule.h"
 
 // Drag & Drop, Clipboard
 #include "nsClipboard.h"