diff --git a/apps/files/lib/Controller/ConversionApiController.php b/apps/files/lib/Controller/ConversionApiController.php
index 1a1b7da17871b..40ea45451ad09 100644
--- a/apps/files/lib/Controller/ConversionApiController.php
+++ b/apps/files/lib/Controller/ConversionApiController.php
@@ -24,6 +24,7 @@
 use OCP\Files\IRootFolder;
 use OCP\IL10N;
 use OCP\IRequest;
+use function OCP\Log\logger;
 
 class ConversionApiController extends OCSController {
 	public function __construct(
@@ -80,7 +81,8 @@ public function convert(int $fileId, string $targetMimeType, ?string $destinatio
 		try {
 			$convertedFile = $this->fileConversionManager->convert($file, $targetMimeType, $destination);
 		} catch (\Exception $e) {
-			throw new OCSException($e->getMessage());
+			logger('files')->error($e->getMessage(), ['exception' => $e]);
+			throw new OCSException($this->l10n->t('The file could not be converted.'));
 		}
 
 		$convertedFileRelativePath = $userFolder->getRelativePath($convertedFile);