diff --git a/TradeSkillMaster/Core/Prices.lua b/TradeSkillMaster/Core/Prices.lua
index 3ca5cba..0587fa7 100644
--- a/TradeSkillMaster/Core/Prices.lua
+++ b/TradeSkillMaster/Core/Prices.lua
@@ -324,7 +324,7 @@ local function ParsePriceString(str, badPriceSource)
 
 	-- replace math functions special custom function names
 	for word, funcName in pairs(MATH_FUNCTIONS) do
-		str = gsub(str, word, funcName)
+		str = gsub(str, "([^%w_])"..word.."([^%w_])", "%1"..funcName.."%2")
 	end
 	
 	-- remove any unused values
diff --git a/TradeSkillMaster/TradeSkillMaster.toc b/TradeSkillMaster/TradeSkillMaster.toc
index 6afb626..be3035b 100644
--- a/TradeSkillMaster/TradeSkillMaster.toc
+++ b/TradeSkillMaster/TradeSkillMaster.toc
@@ -2,7 +2,7 @@
 ## Title: |cff00fe00TradeSkillMaster: Revived|r
 ## Notes: Core addon for the TradeSkillMaster suite, revived for Wrath of the Lich King. Does nothing without modules installed.
 ## Author: Sapu94, Bart39, Gnomezilla [Warmane-Icecrown(A)], BlueAo [Warmane], andrew6180, Yoshiyuka, DimaSheiko, and other contributors...
-## Version: 2.3.45
+## Version: 2.3.46
 ## SavedVariables: TradeSkillMasterAppDB, AscensionTSMDB
 ## OptionalDeps: AccurateTime, Ace3, LibDataBroker-1.1, LibDBIcon-1.0, LibExtraTip, TipHelper, LibParse, LibCompress, LibGraph-2.0, SharedMedia, TheUndermineJournal, TheUndermineJournalGE
 ## X-Embeds: AccurateTime, Ace3, LibDataBroker-1.1, LibDBIcon-1.0, LibExtraTip, TipHelper, LibParse, LibCompress, LibGraph-2.0