diff --git a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
index aede89f47a..d4405cfb30 100644
--- a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
@@ -2161,7 +2161,11 @@
+{if isset($grandstream_display_language) }
+{$grandstream_display_language}
+{else}
auto
+{/if}