diff --git a/src/scripting/vmthunks_actors.cpp b/src/scripting/vmthunks_actors.cpp
index 31c4ab7b4..bf058d479 100644
--- a/src/scripting/vmthunks_actors.cpp
+++ b/src/scripting/vmthunks_actors.cpp
@@ -179,8 +179,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(AActor, A_PlaySound, A_PlaySound)
 	PARAM_FLOAT(attenuation);
 	PARAM_BOOL(local);
 	PARAM_FLOAT(pitch);
-	PARAM_FLOAT(startTime);
-	A_PlaySound(self, soundid, channel, volume, looping, attenuation, local, pitch, startTime);
+	A_PlaySound(self, soundid, channel, volume, looping, attenuation, local, pitch, 0.0f);
 	return 0;
 }
 
@@ -193,7 +192,8 @@ DEFINE_ACTION_FUNCTION_NATIVE(AActor, A_StartSound, A_StartSound)
 	PARAM_FLOAT(volume);
 	PARAM_FLOAT(attenuation);
 	PARAM_FLOAT(pitch);
-	A_StartSound(self, soundid, channel, flags, volume, attenuation, pitch, 0.0f);
+	PARAM_FLOAT(startTime);
+	A_StartSound(self, soundid, channel, flags, volume, attenuation, pitch, startTime);
 	return 0;
 }