diff --git a/resources/install/scripts/app/conference_center/index.lua b/resources/install/scripts/app/conference_center/index.lua
index e2080b32f1..3049fce9f4 100644
--- a/resources/install/scripts/app/conference_center/index.lua
+++ b/resources/install/scripts/app/conference_center/index.lua
@@ -63,6 +63,12 @@
 --answer the call
 	session:answer();
 
+--get record_ext
+	record_ext = session:getVariable("record_ext");
+	if (not record_ext) then
+			record_ext = "wav";
+	end
+
 --define a function to send email
 	function send_email(email, attachment, default_language, default_dialect)
 
@@ -769,7 +775,7 @@
 					end
 				--record the conference
 					if (record == "true") then
-						cmd="sched_api (+5 none lua app/conference_center/resources/scripts/start_recording.lua "..meeting_uuid.." "..domain_name.." )";
+						cmd="sched_api (+5 none lua app/conference_center/resources/scripts/start_recording.lua "..meeting_uuid.." "..domain_name.." "..record_ext.." )";
 						api:executeString(cmd);
 					end
 				--send the call to the conference
diff --git a/resources/install/scripts/app/conference_center/resources/scripts/start_recording.lua b/resources/install/scripts/app/conference_center/resources/scripts/start_recording.lua
index 49a04ddd4c..b2ffccd011 100644
--- a/resources/install/scripts/app/conference_center/resources/scripts/start_recording.lua
+++ b/resources/install/scripts/app/conference_center/resources/scripts/start_recording.lua
@@ -12,6 +12,7 @@
 --options all, last, non_moderator, member_id
 	meeting_uuid = argv[1];
 	domain_name = argv[2];
+	record_ext = argv[3];
 
 --prepare the api object
 	api = freeswitch.API();
@@ -43,8 +44,8 @@
 			recording = recordings_dir.."/"..conference_session_uuid;
 
 		--send a command to record the conference
-			if (not file_exists(recording..".wav")) then
-				cmd = "conference "..meeting_uuid.."@"..domain_name.." record "..recording..".wav";
+			if (not file_exists(recording.."."..record_ext)) then
+				cmd = "conference "..meeting_uuid.."@"..domain_name.." record "..recording.."."..record_ext;
 				freeswitch.consoleLog("notice", "[start-recording] cmd: " .. cmd .. "\n");
 				response = api:executeString(cmd);
 			end