diff -r 8edbdd3a1fe7 -r 74bf2d906097 share/hedgewars/Data/Scripts/TechMaps.lua
--- a/share/hedgewars/Data/Scripts/TechMaps.lua	Mon Nov 19 00:19:21 2018 +0100
+++ b/share/hedgewars/Data/Scripts/TechMaps.lua	Mon Nov 19 00:54:36 2018 +0100
@@ -1361,6 +1361,7 @@
 
 function LoadMap(mID)
 
+	local tempG
 	techX = {}
 	techY = {}
 	techCount = 1