diff --git a/mozilla/allmakefiles.sh b/mozilla/allmakefiles.sh
index d7146a6869e..58c0963d44c 100755
--- a/mozilla/allmakefiles.sh
+++ b/mozilla/allmakefiles.sh
@@ -1046,7 +1046,6 @@ mail/components/shell/Makefile
 mail/components/shell/public/Makefile
 mail/extensions/Makefile
 mail/extensions/smime/Makefile
-mail/extensions/offline/Makefile
 mail/config/Makefile
 mail/installer/Makefile
 mail/installer/windows/Makefile