diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/modbus/modbus-basic-config/modbus-basic-config.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/modbus/modbus-basic-config/modbus-basic-config.component.ts
index d5465f7b5c..87aef8d43e 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/modbus/modbus-basic-config/modbus-basic-config.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/modbus/modbus-basic-config/modbus-basic-config.component.ts
@@ -94,7 +94,7 @@ export class ModbusBasicConfigComponent implements ControlValueAccessor, Validat
       .pipe(takeUntil(this.destroy$))
       .subscribe(enable => {
         this.updateSlaveEnabling(enable);
-        this.basicFormGroup.get('slave').updateValueAndValidity();
+        this.basicFormGroup.get('slave').updateValueAndValidity({emitEvent: !!this.onChange});
       });
   }