diff --git a/app/dialplans/resources/switch/conf/dialplan/440_wake-up.xml b/app/dialplans/resources/switch/conf/dialplan/440_wake-up.xml
index 9c64a70b17..84ff1a8b74 100644
--- a/app/dialplans/resources/switch/conf/dialplan/440_wake-up.xml
+++ b/app/dialplans/resources/switch/conf/dialplan/440_wake-up.xml
@@ -2,7 +2,7 @@
 	<extension name="wake-up" number="*925" continue="false" app_uuid="e27abe68-41c0-4188-bb0f-67d93de0c610" order="440">
 		<condition field="destination_number" expression="^\*(925)$">
 			<action application="answer"/>
-			<action application="set" data="wakeup_call_sound={sounds_dir}/en/us/callie/ivr/48000/ivr-wakey_wakey_sunshine.wav" enabled="false"/>
+			<action application="set" data="wakeup_call_sound=$${sounds_dir}/en/us/callie/ivr/48000/ivr-wakey_wakey_sunshine.wav" enabled="false"/>
 			<action application="set" data="time_zone_offset=-7"/>
 			<action application="lua" data="wakeup.lua"/>
 		</condition>