diff --git a/Makefile b/Makefile
index 3e17365b8..93c29ac26 100644
--- a/Makefile
+++ b/Makefile
@@ -65,7 +65,7 @@ youtube-dl: youtube_dl/*.py youtube_dl/*/*.py
 	done
 	touch -t 200001010101 zip/youtube_dl/*.py zip/youtube_dl/*/*.py
 	mv zip/youtube_dl/__main__.py zip/
-	cd zip ; zip -q ../youtube-dl youtube_dl/*.py youtube_dl/*/*.py __main__.py
+	cd zip ; zip -q -9 ../youtube-dl youtube_dl/*.py youtube_dl/*/*.py __main__.py
 	rm -rf zip
 	echo '#!$(PYTHON)' > youtube-dl
 	cat youtube-dl.zip >> youtube-dl