diff --git a/mail/base/content/viewSource.xul b/mail/base/content/viewSource.xul
index 480751e4a0c8..1e992ba8d502 100644
--- a/mail/base/content/viewSource.xul
+++ b/mail/base/content/viewSource.xul
@@ -75,6 +75,7 @@
     <commandset id="clipboardEditMenuItems"/>
     <commandset id="viewSourceMenuItems">
       <command id="cmd_close" oncommand="ViewSourceClose()"/>
+      <command id="cmd_goToLine" oncommand="ViewSourceGoToLine();" disabled="true"/>
     </commandset>
   </commandset>