diff --git a/ui-ngx/src/app/shared/components/device/gateway-connectors.component.ts b/ui-ngx/src/app/shared/components/device/gateway-connectors.component.ts
index d165b852f5..3b3a5d1393 100644
--- a/ui-ngx/src/app/shared/components/device/gateway-connectors.component.ts
+++ b/ui-ngx/src/app/shared/components/device/gateway-connectors.component.ts
@@ -277,9 +277,9 @@ export class GatewayConnectorComponent extends PageComponent implements AfterVie
       this.connectorForm.enable();
     }
     const connector = attribute.value;
-    // if (connector.configuration) {
-    //   delete connector.configuration;
-    // }
+    if (!connector.configuration) {
+      connector.configuration = "";
+    }
     if (!connector.key) {
       connector.key = 'auto';
     }