diff --git a/Content.Server/Antag/AntagSelectionSystem.cs b/Content.Server/Antag/AntagSelectionSystem.cs
index 610c0ad182..45daa7a312 100644
--- a/Content.Server/Antag/AntagSelectionSystem.cs
+++ b/Content.Server/Antag/AntagSelectionSystem.cs
@@ -184,7 +184,7 @@ public sealed partial class AntagSelectionSystem : GameRuleSystem<AntagSelection
             return;
 
         var players = _playerManager.Sessions
-            .Where(x => GameTicker.PlayerGameStatuses[x.UserId] == PlayerGameStatus.JoinedGame)
+            .Where(x => GameTicker.PlayerGameStatuses.TryGetValue(x.UserId, out var status) && status == PlayerGameStatus.JoinedGame)
             .ToList();
 
         ChooseAntags((uid, component), players, midround: true);
diff --git a/Content.Server/GameTicking/GameTicker.Lobby.cs b/Content.Server/GameTicking/GameTicker.Lobby.cs
index 61d9fd99ca..9a9eb61b67 100644
--- a/Content.Server/GameTicking/GameTicker.Lobby.cs
+++ b/Content.Server/GameTicking/GameTicker.Lobby.cs
@@ -184,6 +184,6 @@ namespace Content.Server.GameTicking
             => UserHasJoinedGame(session.UserId);
 
         public bool UserHasJoinedGame(NetUserId userId)
-            => PlayerGameStatuses[userId] == PlayerGameStatus.JoinedGame;
+            => PlayerGameStatuses.TryGetValue(userId, out var status) && status == PlayerGameStatus.JoinedGame;
     }
 }