diff --git a/src/messenger/webim/libs/invitation.php b/src/messenger/webim/libs/invitation.php
index 01d1c535..0fd0f9c5 100644
--- a/src/messenger/webim/libs/invitation.php
+++ b/src/messenger/webim/libs/invitation.php
@@ -122,7 +122,8 @@ function invitation_invite($visitor_id, $operator) {
 	$thread->postMessage(
 		Thread::KIND_AGENT,
 		getlocal("invitation.message"),
-		$operator_name
+		$operator_name,
+		$operator['operatorid']
 	);
 
 	return $thread;