diff -r bd1db668b7c0 -r ead8928a59f8 share/hedgewars/Data/Missions/Challenge/User_Mission_-_RCPlane_Challenge.lua
--- a/share/hedgewars/Data/Missions/Challenge/User_Mission_-_RCPlane_Challenge.lua	Tue Dec 18 15:21:23 2018 +0100
+++ b/share/hedgewars/Data/Missions/Challenge/User_Mission_-_RCPlane_Challenge.lua	Tue Dec 18 18:16:31 2018 +0100
@@ -407,6 +407,7 @@
 				SendStat(siGameResult, loc("You have finished the challenge!"))
 				SendStat(siCustomAchievement, string.format(loc("You have used %d RC planes."), planesUsed))
 			end
+			SaveMissionVar("Won", "true")
 		
 			if(totalMissiles > 1) then
 				SendStat(siCustomAchievement, string.format(loc("You have dropped %d missiles."), totalMissiles))