diff --git a/syntax.htm b/syntax.htm
index e89ea3d7..327071e5 100644
--- a/syntax.htm
+++ b/syntax.htm
@@ -46,7 +46,7 @@ expression compilation. </p>
 
 <p><i>Literals</i> </p>
 
-<p>All characters are literals except: &quot;.&quot;,
+<p>All characters are literals except: &quot;.&quot;, &quot;|&quot;,
 &quot;*&quot;, &quot;?&quot;, &quot;+&quot;, &quot;(&quot;,
 &quot;)&quot;, &quot;{&quot;, &quot;}&quot;, &quot;[&quot;,
 &quot;]&quot;, &quot;^&quot;, &quot;$&quot; and &quot;\&quot;.