diff --git a/worldedit/manipulations.lua b/worldedit/manipulations.lua
index 71eef5d..2b16c32 100644
--- a/worldedit/manipulations.lua
+++ b/worldedit/manipulations.lua
@@ -286,7 +286,7 @@ worldedit.stack2 = function(pos1, pos2, direction, amount, finished)
 	local i = 0
 	local translated = {x=0,y=0,z=0}
 	local function nextone()
-		if i <= amount then
+		if i < amount then
 			i = i + 1
 			translated.x = translated.x + direction.x
 			translated.y = translated.y + direction.y
diff --git a/worldedit_commands/init.lua b/worldedit_commands/init.lua
index 93e594a..734150a 100644
--- a/worldedit_commands/init.lua
+++ b/worldedit_commands/init.lua
@@ -641,7 +641,7 @@ minetest.register_chatcommand("/stack2", {
 		end
 		repetitions = tonumber(repetitions)
 
-		local x, y, z = incs:match("([+-]?%d+) ([+-]%d+) ([+-]%d+)")
+		local x, y, z = incs:match("([+-]?%d+) ([+-]?%d+) ([+-]?%d+)")
 		if x == nil then
 			worldedit.player_notify(name, "invalid increments: " .. param)
 			return