diff --git a/Makefile b/Makefile
index 200cf1f8..16af2810 100644
--- a/Makefile
+++ b/Makefile
@@ -35,7 +35,7 @@ build:
 	@cp node_modules/quill/dist/quill.core.css dist
 	@cp node_modules/quill/dist/quill.snow.css dist
 	@cp node_modules/quill/dist/quill.bubble.css dist
-	@[[ -d $(LIB) ]] || mkdir $(LIB)
+	@mkdir -p $(LIB)
 	@cp -Rfv $(SOURCE)/* $(LIB)
 
 watch: