diff --git a/gfx/src/ps/nsRenderingContextPS.cpp b/gfx/src/ps/nsRenderingContextPS.cpp
index 77ec4505158d..d0e4ead033cb 100644
--- a/gfx/src/ps/nsRenderingContextPS.cpp
+++ b/gfx/src/ps/nsRenderingContextPS.cpp
@@ -414,7 +414,7 @@ PRInt32     cliptype;
     NS_ASSERTION(FALSE, "illegal clip combination");
   }
 
-#ifdef XP_PC
+#if defined(XP_PC) && !defined(XP_OS2)
   if (cliptype == NULLREGION)
     aClipEmpty = PR_TRUE;
   else