diff --git a/code/datums/looping_sounds/_looping_sound.dm b/code/datums/looping_sounds/_looping_sound.dm
index ddff3630f37f..11ba15146430 100644
--- a/code/datums/looping_sounds/_looping_sound.dm
+++ b/code/datums/looping_sounds/_looping_sound.dm
@@ -43,6 +43,7 @@
 	* with a longer "falloff distance." Fixes the extra_range stuff
 	*/
 	var/is_sound_projecting = FALSE
+	///only applicable to is_sound_projecting: max range till sound volume starts dropping as distance increases
 	var/falloff_distance = 50
 
 /*	// as of yet unused varen \\