diff --git a/ui-ngx/src/app/modules/home/components/profile/device/mqtt-device-profile-transport-configuration.component.ts b/ui-ngx/src/app/modules/home/components/profile/device/mqtt-device-profile-transport-configuration.component.ts
index 0cbb50ed8e..5254b7574f 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device/mqtt-device-profile-transport-configuration.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/device/mqtt-device-profile-transport-configuration.component.ts
@@ -167,7 +167,7 @@ export class MqttDeviceProfileTransportConfigurationComponent implements Control
     } else {
       transportPayloadTypeForm.get('deviceTelemetryProtoSchema').disable({emitEvent: false});
       transportPayloadTypeForm.get('deviceAttributesProtoSchema').disable({emitEvent: false});
-      transportPayloadTypeForm.get('deviceRpcRequestProtoSchema').enable({emitEvent: false});
+      transportPayloadTypeForm.get('deviceRpcRequestProtoSchema').disable({emitEvent: false});
       transportPayloadTypeForm.get('deviceRpcResponseProtoSchema').disable({emitEvent: false});
     }
   }