diff --git a/resources/templates/provision/yealink/t53w/y000000000095.cfg b/resources/templates/provision/yealink/t53w/y000000000095.cfg
index 43534d673f..8e7657f4f3 100644
--- a/resources/templates/provision/yealink/t53w/y000000000095.cfg
+++ b/resources/templates/provision/yealink/t53w/y000000000095.cfg
@@ -694,13 +694,12 @@ static.sip.nat_turn.password=
 static.sip.nat_turn.server=
 static.sip.nat_turn.port=
 
-static.sip.nat_stun.enable=
-static.sip.nat_stun.server=
+static.sip.nat_stun.enable= {if isset($stun_server)}1{else}0{/if}
+static.sip.nat_stun.server= {if isset($stun_server)}{$stun_server}{/if}
 static.sip.nat_stun.port= {if isset($stun_port)}{$stun_port}{else}3478{/if}
 
 
 
-
 static.ice.enable=
 static.network.static_nat.enable= {if isset($yealink_static_nat)}1{else}0{/if}
 static.network.static_nat.addr= {$yealink_static_nat}