diff --git a/mailnews/base/build/nsMsgFactory.cpp b/mailnews/base/build/nsMsgFactory.cpp
index 4e7b12459e..d806e00edd 100644
--- a/mailnews/base/build/nsMsgFactory.cpp
+++ b/mailnews/base/build/nsMsgFactory.cpp
@@ -131,6 +131,7 @@
 #include "nsMsgFolderNotificationService.h"
 
 #include "nsMailDirProvider.h"
+#include "nsServiceManagerUtils.h"
 
 #ifdef XP_WIN
 #include "nsMessengerWinIntegration.h"