diff --git a/packages/Webkul/Customer/src/Database/Migrations/2019_06_15_183412_add_code_column_in_customer_groups_table.php b/packages/Webkul/Customer/src/Database/Migrations/2019_06_15_183412_add_code_column_in_customer_groups_table.php
index daafae532..02c82b1ec 100644
--- a/packages/Webkul/Customer/src/Database/Migrations/2019_06_15_183412_add_code_column_in_customer_groups_table.php
+++ b/packages/Webkul/Customer/src/Database/Migrations/2019_06_15_183412_add_code_column_in_customer_groups_table.php
@@ -14,7 +14,7 @@ class AddCodeColumnInCustomerGroupsTable extends Migration
     public function up()
     {
         Schema::table('customer_groups', function (Blueprint $table) {
-            $table->string('code');
+            $table->string('code')->unique();
         });
     }