diff --git a/Makefile b/Makefile
index ebceac7..c98e089 100644
--- a/Makefile
+++ b/Makefile
@@ -15,5 +15,8 @@ images:
 img-opt:
 	deno run --allow-all utils/img-opt.js
 
+test:
+	deno test --allow-all utils/test.js
+
 fmt:
 	deno fmt utils/*.js