diff --git a/src/Handler/Utils/Exam.hs b/src/Handler/Utils/Exam.hs
index 8c3798c8a..8d0856f61 100644
--- a/src/Handler/Utils/Exam.hs
+++ b/src/Handler/Utils/Exam.hs
@@ -304,7 +304,7 @@ examAutoOccurrence (hash -> seed) rule ExamAutoOccurrenceConfig{..} occurrences
                    | (uid, (User{..}, Nothing)) <- Map.toList users
                    , matriculation' <- userMatrikelnummer ^.. _Just . filtered (not . null)
                    ]
-            in Map.mapKeysWith Set.union (take . F.minimum . Set.map length $ Map.keysSet matrUsers) matrUsers
+            in matrUsers
       _ -> Map.singleton [] $ Map.keysSet users
 
     occurrences' :: Map ExamOccurrenceId Natural