diff --git a/index.js b/index.js
index 6b4566e..84c4828 100644
--- a/index.js
+++ b/index.js
@@ -176,8 +176,8 @@ function getErrorMessage (err, status, env) {
     // use util.format to get native Error print
     msg = util.format(err)
 
+    // fallback to err.toString() when possible
     if (!msg && typeof err.toString === 'function') {
-      // fallback to err.toString() when possible
       msg = err.toString()
     }
   }
diff --git a/test/test.js b/test/test.js
index feed457..a888b66 100644
--- a/test/test.js
+++ b/test/test.js
@@ -578,7 +578,7 @@ describe('finalhandler(req, res)', function () {
     })
   })
 
-  describe.only('Errors with cause', function () {
+  describe('Errors with cause', function () {
     it('should return Error message with 1 level cause trace', function (done) {
       var err = new Error('foo', { cause: new Error('bar') })