diff --git a/templates/conf/post_box.vm b/templates/conf/post_box.vm
index 27862ff..befb0b2 100644
--- a/templates/conf/post_box.vm
+++ b/templates/conf/post_box.vm
@@ -42,7 +42,7 @@
     <tr>
       <td align="left" class="content">#font( "content.fg" "content" )Message:</font></td>
       <td align="right" class="content">#font( "content.fg" "content" )
-        <a href="#externStatic( $html_reference )" target="_blank">HTML Guide</a>
+        <a href="#externalStatic( $html_reference )" target="_blank">HTML Guide</a>
       </font></td>
     </tr>
     <tr><td align="left" colspan="2" class="cinput">