diff --git a/arduino-ide-extension/src/browser/monitor/monitor-widget.tsx b/arduino-ide-extension/src/browser/monitor/monitor-widget.tsx
index 7b0fa0de..cf5329b2 100644
--- a/arduino-ide-extension/src/browser/monitor/monitor-widget.tsx
+++ b/arduino-ide-extension/src/browser/monitor/monitor-widget.tsx
@@ -48,6 +48,7 @@ export class SerialMonitorSendField extends React.Component<SerialMonitorSendFie
 
     protected handleSubmit(event: React.FormEvent<HTMLFormElement>) {
         this.props.onSend(this.state.value);
+        this.setState({ value: '' });
         event.preventDefault();
     }
 }