It is no longer necessary to nil addon:InitializeLookups() after it has been run - it now does so itself.

diff --git a/ARL.lua b/ARL.lua
index 836e5bc..7783d4e 100644
--- a/ARL.lua
+++ b/ARL.lua
@@ -1749,20 +1749,25 @@ function addon:ChatCommand(input)

 end

+-- Public API function to initialize all of the lookup lists - self-nils once run.
+-- @name AckisRecipeList:InitializeLookups()
+-- @usage if AckisRecipeList.InitializeLookups then AckisRecipeList:InitializeLookups() end
+function addon:InitializeLookups()
+	self:InitCustom(private.custom_list)
+	self:InitMob(private.mob_list)
+	self:InitQuest(private.quest_list)
+	self:InitReputation(private.reputation_list)
+	self:InitTrainer(private.trainer_list)
+	self:InitSeasons(private.seasonal_list)
+	self:InitVendor(private.vendor_list)
+
+	self.InitializeLookups = nil
+end
+
 -------------------------------------------------------------------------------
 -- Recipe Scanning Functions
 -------------------------------------------------------------------------------
 do
-	function addon:InitializeLookups()
-		self:InitCustom(private.custom_list)
-		self:InitMob(private.mob_list)
-		self:InitQuest(private.quest_list)
-		self:InitReputation(private.reputation_list)
-		self:InitTrainer(private.trainer_list)
-		self:InitSeasons(private.seasonal_list)
-		self:InitVendor(private.vendor_list)
-	end
-
 	-- List of tradeskill headers, used in addon:Scan()
 	local header_list = {}

@@ -1811,7 +1816,6 @@ do

 		if self.InitializeLookups then
 			self:InitializeLookups()
-			self.InitializeLookups = nil
 		end
 		-- Add the recipes to the database
 		-- TODO: Figure out what this variable was supposed to be for - it isn't used anywhere. -Torhal
diff --git a/Scanner.lua b/Scanner.lua
index d8b4766..0774aed 100644
--- a/Scanner.lua
+++ b/Scanner.lua
@@ -549,7 +549,6 @@ local function LoadRecipe()
 		-- Make sure the lookup lists are loaded as well, since they are no longer automatically loaded in addon:OnEnable().
 		if addon.InitializeLookups then
 			addon:InitializeLookups()
-			addon.InitializeLookups = nil
 		end

 		for idx, prof in pairs(PROFESSIONS) do