diff --git a/aux-addon.lua b/aux-addon.lua
index fe10560..eb16ce9 100644
--- a/aux-addon.lua
+++ b/aux-addon.lua
@@ -67,7 +67,6 @@ do
 		function env.private.USE_ITEM.set(f) tab.USE_ITEM = f end
 		function env.private.CLICK_LINK.set(f) tab.CLICK_LINK = f end
 		function env.public.ACTIVE.get() return tab == active_tab end
-		p(tab)
 		tinsert(tab_info, tab)
 	end
 end
diff --git a/libs/green_t.lua b/libs/green_t.lua
index 4f97263..4715d2d 100644
--- a/libs/green_t.lua
+++ b/libs/green_t.lua
@@ -113,7 +113,7 @@ do
 	code = code .. [[
 		overflow)
 		if overflow ~= nil then error("Vararg overflow.") end
-		local n
+		local n = 0
 		repeat
 	]]
 	for i = MAXPARAMS - 1, 1, -1 do
diff --git a/util/core.lua b/util/core.lua
index 36d72b8..1d54126 100644
--- a/util/core.lua
+++ b/util/core.lua
@@ -48,7 +48,11 @@ public.select = vararg(function(arg)
 	for _ = 1, arg[1] do
 		tremove(arg, 1)
 	end
-	return unpack(arg)
+	if getn(arg) == 0 then
+		return nil
+	else
+		return unpack(arg)
+	end
 end)
 
 public.join = _G.table.concat