diff --git a/plugins/patman/patman.cpp b/plugins/patman/patman.cpp
index b488ed72e..b6c7b5870 100644
--- a/plugins/patman/patman.cpp
+++ b/plugins/patman/patman.cpp
@@ -156,6 +156,10 @@ void patmanInstrument::playNote( NotePlayHandle * _n,
 		instrumentTrack()->processAudioBuffer( _working_buffer,
 								frames + offset, _n );
 	}
+	else
+	{
+		memset( _working_buffer, 0, ( frames + offset ) * sizeof( sampleFrame ) );
+	}
 }