diff --git a/lib/marked.js b/lib/marked.js
index 142eccf00a..b3cc2f38cc 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -368,10 +368,17 @@ Lexer.prototype.token = function(src, top, bq) {
     // def
     if ((!bq && top) && (cap = this.rules.def.exec(src))) {
       src = src.substring(cap[0].length);
-      this.tokens.links[cap[1].toLowerCase()] = {
+      var id = cap[1].toLowerCase();
+      this.tokens.links[id] = {
         href: cap[2],
         title: cap[3]
       };
+      this.tokens.push({
+        type: 'def',
+        id: id,
+        href: cap[2],
+        title: cap[3]
+      });
       continue;
     }
 
@@ -781,6 +788,10 @@ Renderer.prototype.blockquote = function(quote) {
   return '<blockquote>\n' + quote + '</blockquote>\n';
 };
 
+Renderer.prototype.def = function(id, href, title) {
+  return '';
+};
+
 Renderer.prototype.html = function(html) {
   return html;
 };
@@ -966,6 +977,12 @@ Parser.prototype.tok = function() {
     case 'space': {
       return '';
     }
+    case 'def': {
+      return this.renderer.def(
+        this.token.id,
+        this.token.href,
+        this.token.title);
+    }
     case 'hr': {
       return this.renderer.hr();
     }