diff --git a/SummaSQLGame/ViewModels/ChallengeViewModel.cs b/SummaSQLGame/ViewModels/ChallengeViewModel.cs
index acece30..c7f36eb 100644
--- a/SummaSQLGame/ViewModels/ChallengeViewModel.cs
+++ b/SummaSQLGame/ViewModels/ChallengeViewModel.cs
@@ -52,7 +52,10 @@ public ChallengeViewModel(IMainViewModelContext mainContext)
                 type => typeof(IPuzzle).IsAssignableFrom(type)
                 && !type.IsInterface
                 && !type.IsAbstract
-                && type != typeof(MazeViewModel)).ToList();
+                && type != typeof(MazeViewModel)
+                && type != typeof(ChallengeExplanationViewModel)
+                ).ToList();
+                
             _mainContext = mainContext;
             _remainingTime = _totalTime;
             _timer = new DispatcherTimer();