1 files changed, 6 insertions, 3 deletions
diff --git a/src/main/java/de/pixart/messenger/generator/MessageGenerator.java b/src/main/java/de/pixart/messenger/generator/MessageGenerator.java
index 4dae14757..acdaedcbe 100644
--- a/src/main/java/de/pixart/messenger/generator/MessageGenerator.java
+++ b/src/main/java/de/pixart/messenger/generator/MessageGenerator.java
@@ -170,13 +170,16 @@ public class MessageGenerator extends AbstractGenerator {
         return packet;
     }
 
-    public MessagePacket confirm(final Account account, final Jid to, final String id, final boolean groupChat) {
+    public MessagePacket confirm(final Account account, final Jid to, final String id, final Jid counterpart, final boolean groupChat) {
         MessagePacket packet = new MessagePacket();
         packet.setType(groupChat ? MessagePacket.TYPE_GROUPCHAT : MessagePacket.TYPE_CHAT);
         packet.setTo(groupChat ? to.toBareJid() : to);
         packet.setFrom(account.getJid());
-        Element received = packet.addChild("displayed", "urn:xmpp:chat-markers:0");
-        received.setAttribute("id", id);
+        Element displayed = packet.addChild("displayed", "urn:xmpp:chat-markers:0");
+        displayed.setAttribute("id", id);
+        if (groupChat && counterpart != null) {
+            displayed.setAttribute("sender", counterpart.toPreppedString());
+        }
         packet.addChild("store", "urn:xmpp:hints");
         return packet;
     }