diff --git a/lib/Exception/UidValidityChangedException.php b/lib/Exception/UidValidityChangedException.php
index 7f8171ae962bda548ebe371e7b36e2e690f03b18..f5d2c888882259e6c7bc247beeb3321203f33721 100644
--- a/lib/Exception/UidValidityChangedException.php
+++ b/lib/Exception/UidValidityChangedException.php
@@ -23,9 +23,7 @@ declare(strict_types=1);
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-namespace OCA\mail\lib\Exception;
-
-use OCA\Mail\Exception\ServiceException;
+namespace OCA\Mail\Exception;
 
 class UidValidityChangedException extends ServiceException {
 }
diff --git a/lib/IMAP/Sync/Synchronizer.php b/lib/IMAP/Sync/Synchronizer.php
index 43d0f5d758440c9ca74464733aa57c0219e16635..c0cdbd7c182de2c3e9f00942f504dfdd89c6c1f5 100644
--- a/lib/IMAP/Sync/Synchronizer.php
+++ b/lib/IMAP/Sync/Synchronizer.php
@@ -29,8 +29,8 @@ use Horde_Imap_Client_Exception;
 use Horde_Imap_Client_Exception_Sync;
 use Horde_Imap_Client_Ids;
 use Horde_Imap_Client_Mailbox;
+use OCA\Mail\Exception\UidValidityChangedException;
 use OCA\Mail\IMAP\MessageMapper;
-use OCA\mail\lib\Exception\UidValidityChangedException;
 
 class Synchronizer {
 
diff --git a/lib/Service/Sync/ImapToDbSynchronizer.php b/lib/Service/Sync/ImapToDbSynchronizer.php
index 4378270c6e735b8d4026c5e7f8b7b586a77d032f..31640a513acecb26de210915dad1ec85fecb5206 100644
--- a/lib/Service/Sync/ImapToDbSynchronizer.php
+++ b/lib/Service/Sync/ImapToDbSynchronizer.php
@@ -37,11 +37,11 @@ use OCA\Mail\Exception\IncompleteSyncException;
 use OCA\Mail\Exception\MailboxLockedException;
 use OCA\Mail\Exception\MailboxNotCachedException;
 use OCA\Mail\Exception\ServiceException;
+use OCA\Mail\Exception\UidValidityChangedException;
 use OCA\Mail\IMAP\IMAPClientFactory;
 use OCA\Mail\IMAP\MessageMapper as ImapMessageMapper;
 use OCA\Mail\IMAP\Sync\Request;
 use OCA\Mail\IMAP\Sync\Synchronizer;
-use OCA\mail\lib\Exception\UidValidityChangedException;
 use OCA\Mail\Model\IMAPMessage;
 use OCA\Mail\Support\PerformanceLogger;
 use OCP\EventDispatcher\IEventDispatcher;