diff --git a/mozilla/makefile.win b/mozilla/makefile.win
index b549c17c63b..96baf6280fd 100644
--- a/mozilla/makefile.win
+++ b/mozilla/makefile.win
@@ -81,6 +81,7 @@ DIRS = \
   xpfe				\
   editor 			\
   mailnews			\
+  extensions			\
   $(NULL)