diff --git a/Makefile b/Makefile
index 7803a58..883cccb 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@ release:
 
 	test -d $$RELEASE_DIRECTORY/$$VERSION && rm -fr $$RELEASE_DIRECTORY/$$VERSION
 	mkdir -p $$RELEASE_DIRECTORY/$$VERSION/side_menu
-	cp -r README.md CHANGELOG.md appinfo css lib img l10n js src templates screenshots vendor $$RELEASE_DIRECTORY/$$VERSION/side_menu
+	cp -r README.md CHANGELOG.md appinfo lib img l10n js src templates screenshots vendor $$RELEASE_DIRECTORY/$$VERSION/side_menu
 	cd $$RELEASE_DIRECTORY/$$VERSION
 	zip -r side_menu_v$$VERSION.zip side_menu
 	tar cvzf side_menu_v$$VERSION.tar.gz side_menu