diff --git a/resources/templates/provision/yealink/t48g/{$mac}.cfg b/resources/templates/provision/yealink/t48g/{$mac}.cfg
index c9387f2da9..101b2090f6 100644
--- a/resources/templates/provision/yealink/t48g/{$mac}.cfg
+++ b/resources/templates/provision/yealink/t48g/{$mac}.cfg
@@ -924,8 +924,8 @@ account.2.xsi.port =
 #Configure the time zone and time zone name. The time zone ranges from -11 to +12, the default value is +8.
 #local_time.time_zone = +8
 #local_time.time_zone_name = China(Beijing) 
-local_time.time_zone = ${time_zone}
-local_time.time_zone_name = ${time_zone_name}
+local_time.time_zone = {$time_zone}
+local_time.time_zone_name = {$time_zone_name}
 
 
 #######################################################################################