diff --git a/scripts-available/CDB_FederatedServer.sql b/scripts-available/CDB_FederatedServer.sql
index 32ec32a..6d3549a 100644
--- a/scripts-available/CDB_FederatedServer.sql
+++ b/scripts-available/CDB_FederatedServer.sql
@@ -87,7 +87,7 @@ BEGIN
     RETURN role_name::name;
 END
 $$
-LANGUAGE PLPGSQL IMMUTABLE PARALLEL SAFE;
+LANGUAGE PLPGSQL STABLE PARALLEL SAFE;
 
 --
 -- Creates (if not exist) a schema to place the objects for a remote schema