diff --git a/mailnews/mime/cthandlers/vcard/mimevcrd.cpp b/mailnews/mime/cthandlers/vcard/mimevcrd.cpp
index 4a8ec9f84b34..5699f42eb223 100644
--- a/mailnews/mime/cthandlers/vcard/mimevcrd.cpp
+++ b/mailnews/mime/cthandlers/vcard/mimevcrd.cpp
@@ -49,7 +49,9 @@
 #include "nsCRT.h"
 
 // String bundles...
+#ifndef XP_MAC
 nsCOMPtr<nsIStringBundle>   stringBundle = nsnull;
+#endif
 
 static int MimeInlineTextVCard_parse_line (char *, PRInt32, MimeObject *);
 static int MimeInlineTextVCard_parse_eof (MimeObject *, PRBool);
@@ -1960,6 +1962,10 @@ VCardGetStringByID(PRInt32 aMsgId)
   char          *tempString = nsnull;
 	nsresult res = NS_OK;
 
+#ifdef XP_MAC
+nsCOMPtr<nsIStringBundle>   stringBundle = nsnull;
+#endif
+
 	if (!stringBundle)
 	{
 		char*       propertyURL = NULL;