diff --git a/lib/NGCP/Schema/Result/autoprov_devices.pm b/lib/NGCP/Schema/Result/autoprov_devices.pm
index 14277eb2..701f5e69 100644
--- a/lib/NGCP/Schema/Result/autoprov_devices.pm
+++ b/lib/NGCP/Schema/Result/autoprov_devices.pm
@@ -41,7 +41,7 @@ __PACKAGE__->add_columns(
   {
     data_type => "enum",
     default_value => "http",
-    extra => { list => ["http","redirect_panasonic","redirect_yealink","redirect_polycom","redirect_snom"] },
+    extra => { list => ["http","redirect_panasonic","redirect_yealink","redirect_polycom","redirect_snom","redirect_grandstream"] },
     is_nullable => 1,
   },   
   "bootstrap_uri",
diff --git a/lib/NGCP/Schema/Result/autoprov_sync_parameters.pm b/lib/NGCP/Schema/Result/autoprov_sync_parameters.pm
index 68678ff6..3099fb8e 100644
--- a/lib/NGCP/Schema/Result/autoprov_sync_parameters.pm
+++ b/lib/NGCP/Schema/Result/autoprov_sync_parameters.pm
@@ -20,7 +20,7 @@ __PACKAGE__->add_columns(
   {
     data_type => "enum",
     default_value => "http",
-    extra => { list => ["http","redirect_panasonic","redirect_yealink","redirect_polycom","redirect_snom"] },
+    extra => { list => ["http","redirect_panasonic","redirect_yealink","redirect_polycom","redirect_snom","redirect_grandstream"] },
     is_nullable => 0,
   },   
   "parameter_name",