diff --git a/README.md b/README.md
index c691510..4e8ec82 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # i3
 
-[![MIT License](https://img.shields.io/apm/l/atomic-design-ui.svg?)](https://github.com/tterb/atomic-design-ui/blob/master/LICENSEs) ![workflow](https://github.com/minetest-mods/i3/actions/workflows/luacheck.yml/badge.svg) [![GitHub Release](https://img.shields.io/github/release/minetest-mods/i3.svg?style=flat)]() [![ContentDB](https://content.minetest.net/packages/jp/i3/shields/downloads/)](https://content.minetest.net/packages/jp/i3/) [![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.me/jpg84240)
+[![MIT License](https://img.shields.io/apm/l/atomic-design-ui.svg?)](https://github.com/tterb/atomic-design-ui/blob/master/LICENSEs) [![GitHub Release](https://img.shields.io/github/release/minetest-mods/i3.svg?style=flat)]() [![ContentDB](https://content.minetest.net/packages/jp/i3/shields/downloads/)](https://content.minetest.net/packages/jp/i3/) [![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.me/jpg84240)
 
 #### **`i3`** is a next-generation inventory for Minetest.
 
diff --git a/src/operators.lua b/src/operators.lua
index 06e9448..3320fea 100644
--- a/src/operators.lua
+++ b/src/operators.lua
@@ -43,11 +43,13 @@ local function compile(data)
 	return data
 end
 
-local function _load(path, line, data)
+local function _load(path, line, data, t)
 	if line then
-		data = data:split"\n"
-		data[line] = data[line]:gsub("(" .. var .. "+)%s?=%s?(" .. var .. "*)", function(_,b) return b end)
-		data = table.concat(data, "\n")
+		if not t then
+			t = data:split"\n"
+		end
+		t[line] = t[line]:gsub("(" .. var .. "+)%s?=%s?(" .. var .. "*)", "%2")
+		data = table.concat(t, "\n")
 	else
 		local file = assert(io.open(path, "r"))
 		data = file:read"*a"
@@ -61,7 +63,7 @@ local function _load(path, line, data)
 		local err_line = tonumber(err:match(":(%d+):"))
 
 		if line ~= err_line then
-			return _load(path, err_line, data)
+			return _load(path, err_line, data, t)
 		end
 	end
 
diff --git a/tests/test_operators.lua b/tests/test_operators.lua
index dc7981c..aeffc55 100644
--- a/tests/test_operators.lua
+++ b/tests/test_operators.lua
@@ -1,8 +1,6 @@
 local a, b, c = 0, 0, 0
 b+=1
 c++; local foo = "bar";
-print(c-=1)
-print(c++)
 local t = {
 	a = a++,
 	b = 2,
@@ -11,16 +9,18 @@ local t = {
 	e = 1,
 }
 t["b"] <<= 4
-print(dump(t))
+t.b >>= 2
+assert(t.b == 8)
+--print(dump(t))
 --c += 1
 c*=2
 local i = 16
 i += i<<4
-print(i) -- 272
-print(a+=2) -- 2
-print(c++) -- 3
-print(a-=1) -- -1
-print(c^=4) -- 16
-print(a&b) -- 0
-print(c|=a) -- 2
-print(1<<8) -- 256
+assert(i == 272)
+assert((a+=2) == 2)
+assert(c++ == 3)
+assert((a-=1) == -1)
+assert((c^=4) == 16)
+assert((a&b) == 0)
+assert((c|=a) == 2)
+assert((1<<8) == 256)