diff --git a/lib/Repository/UserRepository.php b/lib/Repository/UserRepository.php
index ef4d7ee2..dafe55be 100755
--- a/lib/Repository/UserRepository.php
+++ b/lib/Repository/UserRepository.php
@@ -87,7 +87,7 @@ public function findByDeviceId(string $deviceId): ?AppUser
 
         $query = $queryBuilder->getQuery();
         $query->useQueryCache(true);
-        $query->enableResultCache(self::MICRO_CACHE, sprintf("%s_%s_%s_%s", $deviceId, sha1(self::class), sha1(__METHOD__), $deviceId));
+        $query->enableResultCache(self::MICRO_CACHE, sprintf("%s_%s_%s", sha1(self::class), sha1(__METHOD__), $deviceId));
 
         return $query->getOneOrNullResult();
     }