diff --git a/src/Command/BooksExtractCoverCommand.php b/src/Command/BooksExtractCoverCommand.php
index 97e501d5..092da843 100644
--- a/src/Command/BooksExtractCoverCommand.php
+++ b/src/Command/BooksExtractCoverCommand.php
@@ -64,6 +64,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 try {
                     $book = $this->fileSystemManager->extractCover($book);
                     $this->entityManager->persist($book);
+                    $this->entityManager->flush();
                 } catch (\Exception $e) {
                     $io->error($e->getMessage());
                     continue;