diff --git a/app/dialplans/resources/switch/conf/dialplan/400_recordings.xml b/app/dialplans/resources/switch/conf/dialplan/400_recordings.xml
index a5e2bd6172..d5d0bbdf8a 100644
--- a/app/dialplans/resources/switch/conf/dialplan/400_recordings.xml
+++ b/app/dialplans/resources/switch/conf/dialplan/400_recordings.xml
@@ -5,6 +5,7 @@
 		<action application="set" data="recording_id="/>
 		<action application="set" data="recording_prefix=recording"/>
 		<action application="set" data="record_append=false"/>
+		<action application="set" data="record_ext=wav"/>
 		<action application="lua" data="recordings.lua"/>
 	</condition>
 </extension>