diff --git a/src/Classes/TradeQuery.lua b/src/Classes/TradeQuery.lua
index e76d1fdd12..b5b13d6bcf 100644
--- a/src/Classes/TradeQuery.lua
+++ b/src/Classes/TradeQuery.lua
@@ -528,10 +528,11 @@ end
 
 -- Popup to set stat weight multipliers for sorting
 function TradeQueryClass:SetStatWeights(previousSelectionList)
-    local controls = { }
-    local statList = { }
+	previousSelectionList = previousSelectionList or {}
+	local controls = { }
+	local statList = { }
 	local sliderController = { index = 1 }
-    local popupHeight = 285
+	local popupHeight = 285
 
 	controls.ListControl = new("TradeStatWeightMultiplierListControl", { "TOPLEFT", nil, "TOPRIGHT" }, -410, 45, 400, 200, statList, sliderController)