diff -r 20b755da986f -r c17e5ac9f76d share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua
--- a/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Wed Apr 13 13:14:01 2016 +0200
+++ b/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Wed Apr 13 13:16:01 2016 +0200
@@ -700,6 +700,7 @@
     addHashData(mapID)
 
 		Theme = "Cave"
+		Map = ""
 
 		MapGen = mgDrawn
 		TemplateFilter = 0