diff --git a/include/PresetPreviewPlayHandle.h b/include/PresetPreviewPlayHandle.h
index 0ebed9c89..aa9610a14 100644
--- a/include/PresetPreviewPlayHandle.h
+++ b/include/PresetPreviewPlayHandle.h
@@ -38,6 +38,11 @@ public:
 	PresetPreviewPlayHandle( const QString& presetFile, bool loadByPlugin = false, DataFile *dataFile = 0 );
 	virtual ~PresetPreviewPlayHandle();
 
+	virtual inline bool affinityMatters() const
+	{
+		return true;
+	}
+
 	virtual void play( sampleFrame* buffer );
 	virtual bool isFinished() const;