diff --git a/app/dialplans/resources/switch/conf/dialplan/470_valet_park.xml b/app/dialplans/resources/switch/conf/dialplan/470_valet_park.xml
index ea19232f9e..c5a281bc6a 100644
--- a/app/dialplans/resources/switch/conf/dialplan/470_valet_park.xml
+++ b/app/dialplans/resources/switch/conf/dialplan/470_valet_park.xml
@@ -19,7 +19,7 @@
 			<anti-action application="set" data="effective_caller_id_name=${cond ${regex ${direction} | inbound} == true ? 'park#${caller_id_name}' : 'park#${callee_id_name}'}" inline="true"/>
 			<anti-action application="set" data="valet_parking_timeout=900"/>
 			<anti-action application="set" data="valet_hold_music=${hold_music}"/>
-			<anti-action application="set" data="valet_parking_orbit_exten=${referred_by_user}"/>
+			<anti-action application="set" data="valet_parking_orbit_exten=${cond ${regex ${referred_by_user} | ^$} == true ? ${sip_from_user} : ${referred_by_user}}"/>
 			<anti-action application="answer" data=""/>
 			<anti-action application="valet_park" data="park@${domain_name} *${park_lot}"/>
 		</condition>