diff --git a/script.lua b/script.lua
index bcf0536..a886866 100644
--- a/script.lua
+++ b/script.lua
@@ -208,7 +208,6 @@ end
 --- @param amp number Peak amplitude of sine wave
 function wave(x, period, amp) return math.sin((2/period)*math.pi*(x%period))*amp end
 function lerp(a, b, t) return a + ((b - a) * t) end
-function rad(x) return x*math.pi/180 end
 -- }}}
 
 -- Master and local state variables -- {{{
@@ -849,10 +848,10 @@ function animateMTail(val)
 	local chest_rot = 3
 	local per=2*math.pi
 	-- model.Body.setRot(vectors.of{wave(val, per, 3), 0, 0})
-	armor_model.CHESTPLATE.setRot(vectors.of{-wave(val, per, rad(3)), 0, 0})
+	armor_model.CHESTPLATE.setRot(vectors.of{-wave(val, per, math.rad(3)), 0, 0})
 	-- this makes it work with partial vanilla
-	vanilla_model.TORSO.setRot(vectors.of{-wave(val, per, rad(3)), 0, 0})
-	vanilla_model.JACKET.setRot(vectors.of{-wave(val, per, rad(3.25)), 0, 0})
+	vanilla_model.TORSO.setRot(vectors.of{-wave(val, per, math.rad(3)), 0, 0})
+	vanilla_model.JACKET.setRot(vectors.of{-wave(val, per, math.rad(3)), 0, 0})
 
 	model.Body.LeggingsTopTrimF.setRot(vectors.of{wave(val-1, per, 4), 0, 0})
 	model.Body.LeggingsTopTrimB.setRot(vectors.of{wave(val-1, per, 4), 0, 0})