diff --git a/resources/templates/provision/yealink/t40p/y000000000054.cfg b/resources/templates/provision/yealink/t40p/y000000000054.cfg
index b613787da8..dc2bfad547 100644
--- a/resources/templates/provision/yealink/t40p/y000000000054.cfg
+++ b/resources/templates/provision/yealink/t40p/y000000000054.cfg
@@ -982,7 +982,7 @@ phone_setting.backlight_time = {$yealink_backlight_time}
 #######################################################################################
 
 wallpaper_upload.url = {$yealink_t40p_wallpaper}
-{if isset($t40p_wallpaper_filename)}
+{if isset($yealink_t40p_wallpaper_filename)}
 phone_setting.backgrounds =  Config:{$yealink_t40p_wallpaper_filename}
 {else}
 phone_setting.backgrounds =  Config:yealink_t40p_wallpaper.png