diff --git a/lib/marked.js b/lib/marked.js
index 9b0878872f..8543c6b288 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -32,7 +32,7 @@ var block = {
   def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
   nptable: noop,
   table: noop,
-  lheading: /^([^\n]+)\n {0,3}(=|-){2,} *(?:\n+|$)/,
+  lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
   paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading| {0,3}>|<\/?(?:tag)(?: +|\n|\/?>)|<(?:script|pre|style|!--))[^\n]+)*)/,
   text: /^[^\n]+/
 };
@@ -495,7 +495,7 @@ Lexer.prototype.token = function(src, top) {
       src = src.substring(cap[0].length);
       this.tokens.push({
         type: 'heading',
-        depth: cap[2] === '=' ? 1 : 2,
+        depth: cap[2].charAt(0) === '=' ? 1 : 2,
         text: cap[1]
       });
       continue;
diff --git a/test/specs/commonmark/commonmark.0.29.json b/test/specs/commonmark/commonmark.0.29.json
index 1050702822..e203324415 100644
--- a/test/specs/commonmark/commonmark.0.29.json
+++ b/test/specs/commonmark/commonmark.0.29.json
@@ -425,8 +425,7 @@
     "example": 53,
     "start_line": 1046,
     "end_line": 1055,
-    "section": "Setext headings",
-    "shouldFail": true
+    "section": "Setext headings"
   },
   {
     "markdown": "   Foo\n---\n\n  Foo\n-----\n\n  Foo\n  ===\n",
diff --git a/test/specs/gfm/commonmark.0.29.json b/test/specs/gfm/commonmark.0.29.json
index e080b070ff..f577c7c5cd 100644
--- a/test/specs/gfm/commonmark.0.29.json
+++ b/test/specs/gfm/commonmark.0.29.json
@@ -427,8 +427,7 @@
     "example": 53,
     "start_line": 1046,
     "end_line": 1055,
-    "section": "Setext headings",
-    "shouldFail": true
+    "section": "Setext headings"
   },
   {
     "markdown": "   Foo\n---\n\n  Foo\n-----\n\n  Foo\n  ===\n",