diff --git a/app/src/main/java/org/linphone/chat/ChatMessagesFragment.java b/app/src/main/java/org/linphone/chat/ChatMessagesFragment.java
index 82c220471..bd803625a 100644
--- a/app/src/main/java/org/linphone/chat/ChatMessagesFragment.java
+++ b/app/src/main/java/org/linphone/chat/ChatMessagesFragment.java
@@ -83,6 +83,7 @@ import org.linphone.core.EventLog;
 import org.linphone.core.Factory;
 import org.linphone.core.Participant;
 import org.linphone.core.ParticipantDevice;
+import org.linphone.core.ParticipantImdnState;
 import org.linphone.core.Reason;
 import org.linphone.core.tools.Log;
 import org.linphone.settings.LinphonePreferences;
@@ -1447,6 +1448,10 @@ public class ChatMessagesFragment extends Fragment
         scrollToBottom();
     }
 
+    @Override
+    public void onChatMessageParticipantImdnStateChanged(
+            ChatRoom cr, ChatMessage msg, ParticipantImdnState state) {}
+
     @Override
     public void onSubjectChanged(ChatRoom cr, EventLog event) {
         if (mChatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt())) return;