diff --git a/src/Handler/Utils/Users.hs b/src/Handler/Utils/Users.hs
index 2733a25b2..f91f9136b 100644
--- a/src/Handler/Utils/Users.hs
+++ b/src/Handler/Utils/Users.hs
@@ -138,8 +138,6 @@ getSupervisees = do
 data GuessUserInfo
   = GuessUserMatrikelnummer
     { guessUserMatrikelnummer         :: UserMatriculation          }
-  | GuessUserEduPersonPrincipalName
-    { guessUserEduPersonPrincipalName :: UserEduPersonPrincipalName }
   | GuessUserDisplayName
     { guessUserDisplayName            :: UserDisplayName            }
   | GuessUserSurname
@@ -191,7 +189,6 @@ guessUser (((Set.toList . toNullable) <$>) . Set.toList . dnfTerms -> criteria)
 
     toSql user pl = bool id E.not_ (is _PLNegated pl) $ case pl ^. _plVar of
       GuessUserMatrikelnummer         userMatriculation' -> user E.^. UserMatrikelnummer  E.==.          E.val (Just userMatriculation')
-      GuessUserEduPersonPrincipalName userEPPN'          -> user E.^. UserLdapPrimaryKey  E.==.          E.val (Just userEPPN')
       GuessUserDisplayName            userDisplayName'   -> user E.^. UserDisplayName    `containsAsSet` userDisplayName'
       GuessUserSurname                userSurname'       -> user E.^. UserSurname        `containsAsSet` userSurname'
       GuessUserFirstName              userFirstName'     -> user E.^. UserFirstName      `containsAsSet` userFirstName'