diff --git a/indra/newview/llfloaterimsession.cpp b/indra/newview/llfloaterimsession.cpp
index 0c622e07c4a177fb89c3e4cb2a9ad441b2ddba45..e1dc5b91d0945d0140cd8b2e3551617d81549160 100644
--- a/indra/newview/llfloaterimsession.cpp
+++ b/indra/newview/llfloaterimsession.cpp
@@ -142,7 +142,7 @@ void LLFloaterIMSession::newIMCallback(const LLSD& data)
 		LLFloaterIMSession* floater = LLFloaterReg::findTypedInstance<LLFloaterIMSession>("impanel", session_id);
 
         // update if visible, otherwise will be updated when opened
-		if (floater && floater->getVisible())
+		if (floater && (floater->getHost()? floater->hasFocus() : floater->getVisible()))
 		{
 			floater->updateMessages();
 		}