diff --git a/calendar/lightning/content/imip-bar.js b/calendar/lightning/content/imip-bar.js
index 86476f0dab1..0a3e3cd3eac 100644
--- a/calendar/lightning/content/imip-bar.js
+++ b/calendar/lightning/content/imip-bar.js
@@ -23,7 +23,7 @@
  *   Philipp Kewisch <mozilla@kewis.ch>
  *
  * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or 
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  * in which case the provisions of the GPL or the LGPL are applicable instead
  * of those above. If you wish to allow use of your version of this file only
@@ -181,7 +181,7 @@ function setupBar(imipMethod) {
         isUpdateMsg();
     } else if (imipMethod.toUpperCase() == "REPLY") {
         // Check if this is an reply and display things accordingly
-        processReplyMsg(); 
+        processReplyMsg();
     } else if (imipMethod.toUpperCase() == "CANCEL") {
         // Check if this is an cancel and display things accordingly
         processCancelMsg();
@@ -380,7 +380,7 @@ function getMsgRecipient() {
                 return null;
             }
         }
-        emailMap[identity.toLowerCase()] = true;
+        emailMap[identity.email.toLowerCase()] = true;
     } else {
         // Build a map of usable email addresses
         for (var i = 0; i < identities.Count(); i++) {