diff --git a/src/s_sound.c b/src/s_sound.c
index b8cb06075..20b71fce8 100644
--- a/src/s_sound.c
+++ b/src/s_sound.c
@@ -413,7 +413,7 @@ void S_StartCaption(sfxenum_t sfx_id, INT32 cnum, UINT16 lifespan)
 		return;
 
 	// check for bogus sound #
-	I_Assert(sfx_id >= 0); // allows sfx_None; this shouldn't be allowed directly if S_StartCaption is ever exposed to Lua by itself
+	// I_Assert(sfx_id >= 0); -- allowing sfx_None; this shouldn't be allowed directly if S_StartCaption is ever exposed to Lua by itself
 	I_Assert(sfx_id < NUMSFX);
 
 	sfx = &S_sfx[sfx_id];