diff --git a/mozilla/suite/browser/src/nsBookmarksService.cpp b/mozilla/suite/browser/src/nsBookmarksService.cpp
index ab5db8264a8..75c493f0db3 100644
--- a/mozilla/suite/browser/src/nsBookmarksService.cpp
+++ b/mozilla/suite/browser/src/nsBookmarksService.cpp
@@ -96,6 +96,9 @@
 #ifdef XP_WIN
 #include <SHLOBJ.H>
 #include <INTSHCUT.H>
+#ifdef CompareString
+#undef CompareString
+#endif
 #endif
 
 nsIRDFResource      *kNC_IEFavoritesRoot;