diff --git a/base.fgd b/base.fgd
index 2d2ee57..7aebca9 100644
--- a/base.fgd
+++ b/base.fgd
@@ -3910,6 +3910,9 @@
 	]
 	_minlight(string) : "Minimum Light Level" : : "The minimum level of ambient light that hits this brush."
 	dmg(integer) : "Blocking Damage" : 0 : "Damage done to any entity that blocks the rotation, per frame."
+	
+	minpitch(integer) : "Minimum Sound Pitch" : 30 : "Minimum pitch for the rotating sound when it plays based on the speed of the rotating brush."
+	maxpitch(integer) : "Maximum Sound Pitch" : 100 : "Maximum pitch for the rotating sound when it plays based on the speed of the rotating brush."
 
 	solidbsp(choices) : "Solid Type" : 0 =
 	[