diff --git a/src/Doctrine/Purger/ResetAutoIncrementORMPurger.php b/src/Doctrine/Purger/ResetAutoIncrementORMPurger.php
index 58a3522a..a3fdaf1e 100644
--- a/src/Doctrine/Purger/ResetAutoIncrementORMPurger.php
+++ b/src/Doctrine/Purger/ResetAutoIncrementORMPurger.php
@@ -176,6 +176,11 @@ class ResetAutoIncrementORMPurger implements PurgerInterface, ORMPurgerInterface
                 continue;
             }
 
+            // The table name might be quoted, we have to trim it
+            // See https://github.com/Part-DB/Part-DB-server/issues/299
+            $tbl = trim($tbl, '"');
+            $tbl = trim($tbl, '`');
+
             // If the table is excluded, skip it as well
             if (in_array($tbl, $this->excluded, true)) {
                 continue;
diff --git a/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelper.php b/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelper.php
index 3a1ae3c4..3709fac2 100644
--- a/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelper.php
+++ b/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelper.php
@@ -43,8 +43,8 @@ class PKImportHelper
      */
     public function purgeDatabaseForImport(): void
     {
-        //Versions with "" are needed !!
-        $purger = new ResetAutoIncrementORMPurger($this->em, ['users', '"users"', 'groups', '"groups"', 'u2f_keys', 'internal', 'migration_versions']);
+        //We use the ResetAutoIncrementORMPurger to reset the auto increment values of the tables. Also it normalizes table names before checking for exclusion.
+        $purger = new ResetAutoIncrementORMPurger($this->em, ['users', 'groups', 'u2f_keys', 'internal', 'migration_versions']);
         $purger->purge();
     }