diff --git a/android/src/com/unciv/app/MultiplayerTurnCheckWorker.kt b/android/src/com/unciv/app/MultiplayerTurnCheckWorker.kt
index 7abc9b21b9..0e0b28375a 100644
--- a/android/src/com/unciv/app/MultiplayerTurnCheckWorker.kt
+++ b/android/src/com/unciv/app/MultiplayerTurnCheckWorker.kt
@@ -186,7 +186,11 @@ class MultiplayerTurnCheckWorker(appContext: Context, workerParams: WorkerParame
 
             if (currentGameInfo.currentPlayerCiv.playerId == settings.userId) {
                 // May be useful to remind a player that he forgot to complete his turn.
-                notifyUserAboutTurn(applicationContext, gameNames[gameIds.indexOf(currentGameInfo.gameId)])
+                val gameIndex = gameIds.indexOf(currentGameInfo.gameId)
+                // Of the turnNotification is OFF, this will be -1 since we never saved this game in the array
+                // Or possibly reading the preview file returned an exception
+                if (gameIndex!=-1)
+                    notifyUserAboutTurn(applicationContext, gameNames[gameIndex])
             } else {
                 val inputData = workDataOf(Pair(FAIL_COUNT, 0), Pair(GAME_ID, gameIds), Pair(GAME_NAME, gameNames),
                         Pair(USER_ID, settings.userId), Pair(CONFIGURED_DELAY, settings.multiplayerTurnCheckerDelayInMinutes),