diff --git a/js/libtextsecure.js b/js/libtextsecure.js
index addc3e401d8..b79916e30b3 100644
--- a/js/libtextsecure.js
+++ b/js/libtextsecure.js
@@ -39305,7 +39305,7 @@ MessageReceiver.prototype = {
             ev.error = error;
             ev.proto = envelope;
             this.dispatchEvent(ev);
-            throw error; // reject this promise
+            return Promise.reject(error);
         }.bind(this));
     },
     handleSentMessage: function(destination, timestamp, message) {
diff --git a/libtextsecure/message_receiver.js b/libtextsecure/message_receiver.js
index 169c616996b..67bfdc04edf 100644
--- a/libtextsecure/message_receiver.js
+++ b/libtextsecure/message_receiver.js
@@ -111,7 +111,7 @@ MessageReceiver.prototype = {
             ev.error = error;
             ev.proto = envelope;
             this.dispatchEvent(ev);
-            throw error; // reject this promise
+            return Promise.reject(error);
         }.bind(this));
     },
     handleSentMessage: function(destination, timestamp, message) {