diff --git a/includes/Jobs/SpringImportJob.php b/includes/Jobs/SpringImportJob.php
index 272deed..0694be3 100644
--- a/includes/Jobs/SpringImportJob.php
+++ b/includes/Jobs/SpringImportJob.php
@@ -11,6 +11,7 @@
 use MediaWiki\User\UserIdentity;
 use Throwable;
 use WikiImporterFactory;
+use Wikimedia\Rdbms\DBError;
 use WikiOasis\Spring\ConfigNames;
 use WikiOasis\Spring\Services\ImportSources;
 
@@ -73,6 +74,10 @@ public function run(): bool {
 			$this->importerFactory
 				->getWikiImporter( $status->getValue(), $performer )
 				->doImport();
+		} catch ( DBError $e ) {
+			// Let the job runner roll back and retry: swallowing this leaves the
+			// transaction poisoned and the import silently half-done.
+			throw $e;
 		} catch ( Throwable $e ) {
 			$logger->error( 'Import of {key} failed: {message}', [
 				'key' => $key,