diff --git a/include/AudioPort.h b/include/AudioPort.h
index 5cfcbef53..82e61fb1e 100644
--- a/include/AudioPort.h
+++ b/include/AudioPort.h
@@ -37,7 +37,7 @@ class AudioPort
 {
 public:
 	AudioPort( const QString & _name, bool _has_effect_chain = true );
-	~AudioPort();
+	virtual ~AudioPort();
 
 	inline sampleFrame * firstBuffer()
 	{