diff --git a/Makefile b/Makefile
index 3afc4116..5482c125 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ public/assets-production: $(assets)
 public/packs-production: public/packs
 	rm -rf $@
 	mv $< $@
-	find $@ -type f | xargs -rI {} sh -c "brotli -k -9 {}; gzip -9 -k {}"
+	find $@ -type f | xargs -r brotli -k -9
 	mkdir -p $<
 	touch $@