diff --git a/Makefile b/Makefile
index 5521fa640..0e69fa42a 100644
--- a/Makefile
+++ b/Makefile
@@ -301,6 +301,6 @@ customupdate: all
 	cp -r git-rev resources $(INSTALL_DIR)
 	cp -rpL frontend $(INSTALL_DIR)
 	mkdir $(INSTALL_DIR)/fonts/host
-	zip -9 -r kindlepdfviewer-$(VERSION).zip $(INSTALL_DIR) launchpad/ kite/
+	zip -9 -r kindlepdfviewer-$(VERSION).zip $(INSTALL_DIR) launchpad/ kite/ extensions/
 	rm -rf $(INSTALL_DIR)
 	@echo "copy kindlepdfviewer-$(VERSION).zip to /mnt/us/customupdates and install with shift+shift+I"