diff --git a/js/libtextsecure.js b/js/libtextsecure.js
index 846f47f5a..786d95de9 100644
--- a/js/libtextsecure.js
+++ b/js/libtextsecure.js
@@ -37210,7 +37210,7 @@ MessageReceiver.prototype.extend({
             if ((finalMessage.flags & textsecure.protobuf.DataMessage.Flags.END_SESSION)
                     == textsecure.protobuf.DataMessage.Flags.END_SESSION &&
                     finalMessage.sync !== null) {
-                    var number = textsecure.utils.unencodeNumber(encodedNumber)[0];
+                    var number = textsecure.utils.unencodeNumber(from)[0];
                     p = this.handleEndSession(number);
             }
 
diff --git a/libtextsecure/message_receiver.js b/libtextsecure/message_receiver.js
index 947fcd41b..1957e7116 100644
--- a/libtextsecure/message_receiver.js
+++ b/libtextsecure/message_receiver.js
@@ -311,7 +311,7 @@ MessageReceiver.prototype.extend({
             if ((finalMessage.flags & textsecure.protobuf.DataMessage.Flags.END_SESSION)
                     == textsecure.protobuf.DataMessage.Flags.END_SESSION &&
                     finalMessage.sync !== null) {
-                    var number = textsecure.utils.unencodeNumber(encodedNumber)[0];
+                    var number = textsecure.utils.unencodeNumber(from)[0];
                     p = this.handleEndSession(number);
             }