diff --git a/modules/Makefile b/modules/Makefile
index 55188d2f6dc..62c325fcb58 100644
--- a/modules/Makefile
+++ b/modules/Makefile
@@ -34,6 +34,7 @@ DIRS		= \
     zlib \
     li \
     progress \
+    plugin \
 	$(NULL)
 
 ifndef MOZ_SECURITY