diff --git a/src/include/DataModelV2/SoundService.h b/src/include/DataModelV2/SoundService.h
index 62b1ae5..9063438 100644
--- a/src/include/DataModelV2/SoundService.h
+++ b/src/include/DataModelV2/SoundService.h
@@ -10,7 +10,7 @@ public:
 	~SoundService(void);
 
 	float getMusicVolume();
-	void playSound(SoundInstance* sound);
+	void playSound(Instance* sound);
 private:
 	float musicVolume;
 };
diff --git a/src/source/DataModelV2/PartInstance.cpp b/src/source/DataModelV2/PartInstance.cpp
index a38bbec..8fb5837 100644
--- a/src/source/DataModelV2/PartInstance.cpp
+++ b/src/source/DataModelV2/PartInstance.cpp
@@ -525,10 +525,10 @@ void PartInstance::onTouch()
 		case Enum::Sound::NoSound:
 			break;
 		case Enum::Sound::Victory:
-			sndService->playSound(dynamic_cast<SoundInstance*>(sndService->findFirstChild("Victory")));
+			sndService->playSound(sndService->findFirstChild("Victory"));
 			break;
 		case Enum::Sound::Boing:
-			sndService->playSound(dynamic_cast<SoundInstance*>(sndService->findFirstChild("Boing")));
+			sndService->playSound(sndService->findFirstChild("Boing"));
 			break;
 	}
 }
diff --git a/src/source/DataModelV2/SoundService.cpp b/src/source/DataModelV2/SoundService.cpp
index 17c9ffd..46662d4 100644
--- a/src/source/DataModelV2/SoundService.cpp
+++ b/src/source/DataModelV2/SoundService.cpp
@@ -71,10 +71,15 @@ SoundService::~SoundService(void)
 {
 }
 
-void SoundService::playSound(SoundInstance* sound)
+void SoundService::playSound(Instance* sound)
 {
-	std::string soundId = sound->getSoundId();
-	AudioPlayer::playSound(GetFileInPath(soundId));
+	// Try to dynamic_cast it to SoundInstance
+	SoundInstance* sndInst = dynamic_cast<SoundInstance*>(sound);
+	if(sndInst != NULL)
+	{
+		std::string soundId = sndInst->getSoundId();
+		AudioPlayer::playSound(GetFileInPath(soundId));
+	}
 }
 
 float SoundService::getMusicVolume()