diff --git a/lib/advancedLua.lua b/lib/advancedLua.lua
index cc02ba39..d430a814 100755
--- a/lib/advancedLua.lua
+++ b/lib/advancedLua.lua
@@ -115,7 +115,7 @@ end
 
 function math.roundToDecimalPlaces(num, decimalPlaces)
 	local mult = 10 ^ (decimalPlaces or 0)
-	return math.floor(num * mult + 0.5) / mult
+	return math.round(num * mult) / mult
 end
 
 function math.getDigitCount(num)