diff --git a/doc/guide.html b/doc/guide.html
index 4de41d29..fa01e668 100644
--- a/doc/guide.html
+++ b/doc/guide.html
@@ -195,7 +195,8 @@
     that is automatically inserted into the file dde_apps/dde_init.js is fine.
     However, in that file you may need to modify the ip_address and port number
     of Dexter. The default ip_address is <code>"192.168.1.142"</code> The port number
-    is typically <code>"50000"</code>.
+    is typically <code>"50000"</code>. Be sure to (Eval)uate the file or restart DDE so
+    your changes will have effect. 
 </details>
 
 <details id="configure_dexter_id" class="doc_details"><summary>Configure Dexter</summary>
@@ -2343,4 +2344,4 @@ <h4>Boot</h4>
     latest <a href="#" onclick="open_doc(release_notes_doc_id)">Release Notes</a><br/>
      and the <a href="#" onclick="open_doc(known_issues_doc_id)">Known Issues</a> to help hone your
     suggestions.
-</details>
\ No newline at end of file
+</details>