diff --git a/mozilla/xpinstall/makefile.win b/mozilla/xpinstall/makefile.win
index f15dfbb9bfd..4f6227a903a 100644
--- a/mozilla/xpinstall/makefile.win
+++ b/mozilla/xpinstall/makefile.win
@@ -25,6 +25,6 @@
 
 DEPTH=..
 
-DIRS= public res src stub wizard\libxpnet wizard\windows
+DIRS= public res src stub wizard\libxpnet wizard\windows cleanup
 
 include <$(DEPTH)\config\rules.mak>