diff --git a/test/specs/marked/marked.json b/test/specs/marked/marked.json
index a42f6dc981..b64eda14cf 100644
--- a/test/specs/marked/marked.json
+++ b/test/specs/marked/marked.json
@@ -95,6 +95,12 @@
     "html": "<p><strong><a href=\"mailto:me@example.com\">me@example.com</a></strong></p>",
     "example": 1327
   },
+  {
+    "section": "Autolinks",
+    "markdown": "__test@test.com__",
+    "html": "<p><strong><a href=\"mailto:test@test.com\">test@test.com</a></strong></p>",
+    "example": 1347
+  },
   {  
     "section": "Emphasis extra tests",
     "markdown": "_test_. _test_: _test_! _test_? _test_-",