diff --git a/js/background.js b/js/background.js
index fffb75917..ea2d0627f 100644
--- a/js/background.js
+++ b/js/background.js
@@ -860,20 +860,18 @@
       );
       const { expireTimer } = details;
       const isValidExpireTimer = typeof expireTimer === 'number';
-      if (!isValidExpireTimer) {
-        return;
+      if (isValidExpireTimer) {
+        const source = textsecure.storage.user.getNumber();
+        const receivedAt = Date.now();
+
+        await conversation.updateExpirationTimer(
+          expireTimer,
+          source,
+          receivedAt,
+          { fromSync: true }
+        );
       }
 
-      const source = textsecure.storage.user.getNumber();
-      const receivedAt = Date.now();
-
-      await conversation.updateExpirationTimer(
-        expireTimer,
-        source,
-        receivedAt,
-        { fromSync: true }
-      );
-
       if (details.verified) {
         const { verified } = details;
         const verifiedEvent = new Event('verified');
@@ -885,8 +883,6 @@
         verifiedEvent.viaContactSync = true;
         await onVerified(verifiedEvent);
       }
-
-      ev.confirm();
     } catch (error) {
       window.log.error('onContactReceived error:', Errors.toLogFormat(error));
     }
diff --git a/libtextsecure/message_receiver.js b/libtextsecure/message_receiver.js
index aa23fcecd..aa3e77a72 100644
--- a/libtextsecure/message_receiver.js
+++ b/libtextsecure/message_receiver.js
@@ -814,7 +814,6 @@ MessageReceiver.prototype.extend({
       let contactDetails = contactBuffer.next();
       while (contactDetails !== undefined) {
         const ev = new Event('contact');
-        ev.confirm = this.removeFromCache.bind(this, envelope);
         ev.contactDetails = contactDetails;
         results.push(this.dispatchAndWait(ev));
 
@@ -822,10 +821,12 @@ MessageReceiver.prototype.extend({
       }
 
       const ev = new Event('contactsync');
-      ev.confirm = this.removeFromCache.bind(this, envelope);
       results.push(this.dispatchAndWait(ev));
 
-      return Promise.all(results);
+      return Promise.all(results).then(() => {
+        window.log.info('handleContacts: finished');
+        return this.removeFromCache(envelope);
+      });
     });
   },
   handleGroups(envelope, groups) {