diff --git a/acorn.js b/acorn.js
index 64abf4bc40..c985d9e954 100644
--- a/acorn.js
+++ b/acorn.js
@@ -1481,6 +1481,7 @@
     case _null: case _true: case _false:
       var node = startNode();
       node.value = tokType.atomValue;
+      node.raw = tokType.keyword
       next();
       return finishNode(node, "Literal");
 
diff --git a/index.html b/index.html
index b844133476..55b77fd519 100644
--- a/index.html
+++ b/index.html
@@ -1094,6 +1094,7 @@ or <code>{}</code>.</p>             </td>             <td class="code">
     <span class="k">case</span> <span class="nx">_null</span><span class="o">:</span> <span class="k">case</span> <span class="nx">_true</span><span class="o">:</span> <span class="k">case</span> <span class="nx">_false</span><span class="o">:</span>
       <span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
       <span class="nx">node</span><span class="p">.</span><span class="nx">value</span> <span class="o">=</span> <span class="nx">tokType</span><span class="p">.</span><span class="nx">atomValue</span><span class="p">;</span>
+      <span class="nx">node</span><span class="p">.</span><span class="nx">raw</span> <span class="o">=</span> <span class="nx">tokType</span><span class="p">.</span><span class="nx">keyword</span>
       <span class="nx">next</span><span class="p">();</span>
       <span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">&quot;Literal&quot;</span><span class="p">);</span>