diff --git a/zjg1mprub2.js b/zjg1mprub2.js
index 832050c..307910b 100644
--- a/zjg1mprub2.js
+++ b/zjg1mprub2.js
@@ -21,6 +21,21 @@ this.throwerParticleEngine.updateInstance('particlesPerSecond');
 this.throwerParticleEngine.templateParticle.speed = 300;
 this.throwerParticleEngine.templateParticle.scale.x = 15;
 
+if (GameLib.Utils.UndefinedOrNull(this.subscription)) {
+	this.subscription = GameLib.Event.Subscribe(
+		GameLib.Event.AUDIO_ENDED,
+		function(data) {
+			if (data.audio.name === 'Audio - Flamethrower') {
+				GameLib.Event.Emit(GameLib.Event.MOUSE_UP);
+				if (this.subscription) {
+					this.subscription.remove();
+					this.subscription = null;
+				}
+			}
+		}.bind(this)
+	);
+}
+
 GameLib.Event.Emit(
 	GameLib.Event.PLAY_AUDIO,
 	{
@@ -28,18 +43,5 @@ GameLib.Event.Emit(
 	}
 );
 
-this.subscription = GameLib.Event.Subscribe(
-	GameLib.Event.AUDIO_ENDED,
-	function(data) {
-		if (data.audio.name === 'Audio - Flamethrower') {
-			GameLib.Event.Emit(GameLib.Event.MOUSE_UP);
-			if (this.subscription) {
-				this.subscription.remove();
-				this.subscription = null;
-			}
-		}
-	}.bind(this)
-);
-
 return null;
 //@ sourceURL=mouseDown.js
\ No newline at end of file