diff --git a/indra/newview/fsfloaterimcontainer.cpp b/indra/newview/fsfloaterimcontainer.cpp
index 01e9a854d0..db7ef1849e 100644
--- a/indra/newview/fsfloaterimcontainer.cpp
+++ b/indra/newview/fsfloaterimcontainer.cpp
@@ -471,4 +471,16 @@ void FSFloaterIMContainer::checkFlashing()
 		gToolBarView->flashCommand(LLCommandId("chat"), false);
 	}
 }
+
+void FSFloaterIMContainer::sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id)
+{
+	avatarID_panel_map_t::iterator found = mSessions.find(old_session_id);
+	if (found != mSessions.end())
+	{
+		LLFloater* floaterp = found->second;
+		mSessions.erase(found);
+		mSessions[new_session_id] = floaterp;
+	}
+}
+
 // EOF
diff --git a/indra/newview/fsfloaterimcontainer.h b/indra/newview/fsfloaterimcontainer.h
index 9d6a413dd7..eef05dd552 100644
--- a/indra/newview/fsfloaterimcontainer.h
+++ b/indra/newview/fsfloaterimcontainer.h
@@ -72,7 +72,7 @@ public:
 	virtual void sessionActivated(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id) {};
 	virtual void sessionVoiceOrIMStarted(const LLUUID& session_id) {};
 	virtual void sessionRemoved(const LLUUID& session_id);
-	virtual void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id) {};
+	virtual void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id);
 
 	static void reloadEmptyFloaters();
 	void initTabs();