diff --git a/Monal/Classes/chatViewController.m b/Monal/Classes/chatViewController.m
index 7f6a1d33d..6a813c6e1 100644
--- a/Monal/Classes/chatViewController.m
+++ b/Monal/Classes/chatViewController.m
@@ -237,7 +237,7 @@ -(void) viewDidLoad
     [self updateCallButtonImage];
     
     //ping this muc on open, to make sure we are still joined
-    if([[[DataLayer sharedInstance] listMucsForAccount:self.contact.accountID] containsObject:self.contact.contactJid])
+    if([[[DataLayer sharedInstance] listMucsForAccount:self.contact.accountId] containsObject:self.contact.contactJid])
         [self.xmppAccount.mucProcessor ping:self.contact.contactJid];
 }