diff --git a/resources/templates/provision/yealink/t48g/y000000000035.cfg b/resources/templates/provision/yealink/t48g/y000000000035.cfg
index ae400755d0..df26d6f505 100644
--- a/resources/templates/provision/yealink/t48g/y000000000035.cfg
+++ b/resources/templates/provision/yealink/t48g/y000000000035.cfg
@@ -981,7 +981,7 @@ phone_setting.backlight_time = {$yealink_backlight_time}
 ##                                   Wallpaper                                       ##
 #######################################################################################
 wallpaper_upload.url = {$yealink_t48g_wallpaper}
-{if isset($yealink_t48_wallpaper_filename)}
+{if isset($yealink_t48g_wallpaper_filename)}
 phone_setting.backgrounds =  Config:{$yealink_t48g_wallpaper_filename}
 {else}
 phone_setting.backgrounds =  Config:yealink_t48g_wallpaper.png