diff --git a/grammar.ebnf b/grammar.ebnf
index f308b65..099f4b2 100644
--- a/grammar.ebnf
+++ b/grammar.ebnf
@@ -5,6 +5,7 @@ Variable ::= "@" Identifier
 Bare_String ::= (GraphicChar | ("\" Char)) +
 Quoted_String ::= '"' ([^"\] | "\" Char) * '"'
               | "'" ([^'\] | "\" Char) * "'"
+Comment ::= '#' PrintChar +
 
 Integer ::= [+-] ? Digit +
 Hex ::= [+-] ? "0" [xX] (Digit | [a-fA-F]) +
diff --git a/grammar/diagram/Comment.png b/grammar/diagram/Comment.png
new file mode 100755
index 0000000..b7b057b
Binary files /dev/null and b/grammar/diagram/Comment.png differ
diff --git a/grammar/index.html b/grammar/index.html
index 8f8369f..b015bda 100755
--- a/grammar/index.html
+++ b/grammar/index.html
@@ -256,6 +256,16 @@
          
       </p>
       
+      <p>no references</p><br><p style="font-size: 14px; font-weight:bold"><a name="Comment">Comment:</a></p>
+      <img border="0" src="diagram/Comment.png" height="52" width="226" usemap="#Comment.map"><map name="Comment.map">
+         <area shape="rect" coords="99,17,177,49" href="#PrintChar" title="PrintChar"></map>
+      
+      <p>
+         
+         <div class="ebnf"><pre><a href="#Comment" title="Comment" shape="rect">Comment</a>  ::= '#' <a href="#PrintChar" title="PrintChar" shape="rect">PrintChar</a>+</pre></div>
+         
+      </p>
+      
       <p>no references</p><br><p style="font-size: 14px; font-weight:bold"><a name="Integer">Integer:</a></p>
       <img border="0" src="diagram/Integer.png" height="112" width="236" usemap="#Integer.map"><map name="Integer.map">
          <area shape="rect" coords="139,17,187,49" href="#Digit" title="Digit"></map>
@@ -619,6 +629,8 @@
          
          <ul>
             
+            <li><a href="#Comment" title="Comment">Comment</a></li>
+            
             <li><a href="#GraphicChar" title="GraphicChar">GraphicChar</a></li>
             
             <li><a href="#Identifier" title="Identifier">Identifier</a></li>