diff --git a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
index cfc27498591..aad4bb6195e 100644
--- a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
+++ b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
@@ -147,8 +147,8 @@ Should be replaced by the following code:
     try {
         $qb->insert(...);
         $qb->executeStatement();
-    } catch (\Doctrine\DBAL\Exception\UniqueConstraintViolationException) {
-        if ($e->getReason() !== Exception::REASON_UNIQUE_CONSTRAINT_VIOLATION) {
+    } catch (\OCP\DB\Exception $e) {
+        if ($e->getReason() !== \OCP\DB\Exception::REASON_UNIQUE_CONSTRAINT_VIOLATION) {
             throw $e;
         }