diff --git a/colors/test.ts b/colors/test.ts
index bdce355234..bfe8bc4f51 100644
--- a/colors/test.ts
+++ b/colors/test.ts
@@ -19,4 +19,6 @@ test(function enablingColors() {
   assert.equal(getEnabled(), true);
   setEnabled(false);
   assert.equal(bgBlue(red("Hello world")), "Hello world");
+  setEnabled(true);
+  assert.equal(red("Hello world"), "Hello world");
 });