diff --git a/resources/templates/provision/yealink/t52s/y000000000074.cfg b/resources/templates/provision/yealink/t52s/y000000000074.cfg
index e3ebcf0f32..052de170ff 100644
--- a/resources/templates/provision/yealink/t52s/y000000000074.cfg
+++ b/resources/templates/provision/yealink/t52s/y000000000074.cfg
@@ -1432,8 +1432,8 @@ features.power_saving.intelligent_mode= {$yealink_powersave_intelligent_mode}
 ##2MB of space should bereserved for the phone
 
 wallpaper_upload.url = {$yealink_t52s_wallpaper}
-{if isset($t52s_wallpaper_filename)}
-phone_setting.backgrounds =  Config:{$t52s_wallpaper_filename}
+{if isset($yealink_t52s_wallpaper_filename)}
+phone_setting.backgrounds =  Config:{$yealink_t52s_wallpaper_filename}
 {else}
 phone_setting.backgrounds =  Config:yealink_t52s_wallpaper.png
 {/if}