diff --git a/fm_pulsar.scd b/fm_pulsar.scd
index 0bfbaeb..17a5dad 100644
--- a/fm_pulsar.scd
+++ b/fm_pulsar.scd
@@ -42,7 +42,7 @@ z = SynthDef("fm_pulsar",{
 	]);
 
 	a = LeakDC.ar(a * e) ;
-	Out.ar(\outBus.kr(0), a * \gain.kr(0.1));
+	Out.ar(\outBus.kr(0), a.dup * \gain.kr(0.1));
 
-}).add;
+}).play;
 )