diff --git a/worldeditadditions/utils/tables.lua b/worldeditadditions/utils/tables.lua
index 8603484..a68c9ea 100644
--- a/worldeditadditions/utils/tables.lua
+++ b/worldeditadditions/utils/tables.lua
@@ -75,7 +75,7 @@ function worldeditadditions.table_map(tbl, func)
 	local result = {}
 	for i,value in ipairs(tbl) do
 		local newval = func(value, i)
-		if newval ~= nil then table.insert(tbl, newval) end
+		if newval ~= nil then table.insert(result, newval) end
 	end
 	return result
 end