diff --git a/resources/templates/provision/yealink/t40p/y000000000054.cfg b/resources/templates/provision/yealink/t40p/y000000000054.cfg
index ae9e38dbf4..b613787da8 100644
--- a/resources/templates/provision/yealink/t40p/y000000000054.cfg
+++ b/resources/templates/provision/yealink/t40p/y000000000054.cfg
@@ -983,7 +983,7 @@ phone_setting.backlight_time = {$yealink_backlight_time}
 
 wallpaper_upload.url = {$yealink_t40p_wallpaper}
 {if isset($t40p_wallpaper_filename)}
-phone_setting.backgrounds =  Config:{$t40p_wallpaper_filename}
+phone_setting.backgrounds =  Config:{$yealink_t40p_wallpaper_filename}
 {else}
 phone_setting.backgrounds =  Config:yealink_t40p_wallpaper.png
 {/if}