diff --git a/firmware/controllers/lua/lua_lib.h b/firmware/controllers/lua/lua_lib.h
index 3f00d47d38..f26203e3eb 100644
--- a/firmware/controllers/lua/lua_lib.h
+++ b/firmware/controllers/lua/lua_lib.h
@@ -21,6 +21,22 @@ end \
 
 #define PRINT_ARRAY "hexstr = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, \"A\", \"B\", \"C\", \"D\", \"E\", \"F\" } \
 \
+function toHexString(num)  \
+	if num == 0 then \
+		return '0' \
+	end \
+ \
+	local result = \"\"   \
+	while num > 0 do   \
+		local n = num % 16  \
+		result = hexstr[n + 1] ..result   \
+		num = math.floor(num / 16)   \
+	end  \
+	return result  \
+end   \
+\
+\
+\
 "
 
 // LSB (Least Significant Byte comes first) "Intel"
diff --git a/unit_tests/tests/lua/test_lua_vag.cpp b/unit_tests/tests/lua/test_lua_vag.cpp
index 15c49598a5..fc5482172c 100644
--- a/unit_tests/tests/lua/test_lua_vag.cpp
+++ b/unit_tests/tests/lua/test_lua_vag.cpp
@@ -23,19 +23,6 @@ TEST(LuaVag, Checksum) {
 TEST(LuaVag, packMotor1) {
 	const char* realdata = PRINT_ARRAY ARRAY_EQUALS SET_TWO_BYTES R"(
 
-function toHexString(num)
-	if num == 0 then
-		return '0'
-	end
-
-	local result = ""
-	while num > 0 do
-		local n = num % 16
-		result = hexstr[n + 1] ..result
-		num = math.floor(num / 16)
-	end
-	return result
-end
 
 function arrayToString(arr)
 	local str = ""