diff --git a/resources/templates/provision/yealink/t46u/y000000000108.cfg b/resources/templates/provision/yealink/t46u/y000000000108.cfg
index f91a9ac3a1..72a826eb52 100644
--- a/resources/templates/provision/yealink/t46u/y000000000108.cfg
+++ b/resources/templates/provision/yealink/t46u/y000000000108.cfg
@@ -1630,7 +1630,12 @@ phone_setting.backgrounds =  Config:yealink_t46u_wallpaper.png
 phone_setting.backgrounds_with_dsskey_unfold=
 
 ##expansion_module.backgrounds(Only support T5XW/T54S/T52S/T43U/T46U/T48U)
+wallpaper_upload.url = {$yealink_t46u_wallpaper_expansion}
+{if isset($yealink_t46u_wallpaper_expansion_filename)}
+expansion_module.backgrounds=Config:{$yealink_t46u_wallpaper_expansion_filename}
+{else}
 expansion_module.backgrounds=
+{/if}
 
 
 #######################################################################################