diff -r cf1377ab2f89 -r 957e4e2e2802 share/hedgewars/Data/Missions/Scenario/User_Mission_-_Dangerous_Ducklings.lua
--- a/share/hedgewars/Data/Missions/Scenario/User_Mission_-_Dangerous_Ducklings.lua	Thu Oct 26 04:10:57 2017 +0200
+++ b/share/hedgewars/Data/Missions/Scenario/User_Mission_-_Dangerous_Ducklings.lua	Thu Oct 26 05:25:45 2017 +0200
@@ -136,7 +136,9 @@
 		elseif (gear == instructor) and (GetY(gear) > WaterLine) then
 			HogSay(player, loc("See ya!"), SAY_THINK)
 			TurnTimeLeft = 3000
-			AddCaption(string.format(loc("Achievement gotten: %s"), loc("Naughty Ninja")) ,0xffba00ff,capgrpMessage2)
+			local achievementString = string.format(loc("Achievement gotten: %s"), loc("Naughty Ninja"))
+			AddCaption(achievementString, 0xffba00ff, capgrpMessage2)
+			SendStat(siCustomAchievement, achievementString)
 			DismissTeam(loc("Blue Team"))
 			gameWon = true
 		elseif gear == enemy then