diff --git a/backup_github/backup.py b/backup_github/backup.py
index 5445b38..d98e6ec 100644
--- a/backup_github/backup.py
+++ b/backup_github/backup.py
@@ -114,7 +114,9 @@ def __save_repo_content(self, repository, dir):
                         subprocess.call, ["git", "clone", "--bare", repo_url]
                     )
                     if not os.path.exists(f"{repository}.git"):
-                        raise subprocess.CalledProcessError
+                        raise subprocess.CalledProcessError(
+                            1, ["git", "clone", "--bare", repo_url]
+                        )
             except subprocess.CalledProcessError:
                 shutil.rmtree(f"{dir}/{repository}")
                 logging.error(f"Repository {repository} backup error, will be skipped")