--- a/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Fri Feb 12 14:27:20 2016 -0500
+++ b/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Sat Feb 13 00:36:38 2016 +0300
@@ -690,10 +690,10 @@
 end
 
 function onGameInit()
-
-		if mapID == nil then
-			mapID = 2 + GetRandom(7)
-		end
+    if mapID == nil then
+        mapID = 2 + GetRandom(7)
+        addHashData(mapID)
+    end
 
 		Theme = "Cave"