diff --git a/resources/templates/provision/yealink/t48s/y000000000065.cfg b/resources/templates/provision/yealink/t48s/y000000000065.cfg
index 4a0c5dd111..45935557a1 100644
--- a/resources/templates/provision/yealink/t48s/y000000000065.cfg
+++ b/resources/templates/provision/yealink/t48s/y000000000065.cfg
@@ -877,7 +877,7 @@ linekey.{$row.device_key_id}.label = {$row.device_key_label}
 features.block_linekey_in_menu.enable =
 features.shorten_linekey_label.enable =
 features.flash_url_dsskey_led.enable =
-features.config_dsskey_length =
+features.config_dsskey_length = {$yealink_dsskey_length}
 phone_setting.page_tip =
 features.keep_switch_page_key.enable=