Fix #194

1 files changed, 1 insertions, 1 deletions

diff --git a/klaus/repo.py b/klaus/repo.py
index 7e93bc1..09fcedb 100644
--- a/klaus/repo.py
+++ b/klaus/repo.py
@@ -153,7 +153,7 @@ class FancyRepo(dulwich.repo.Repo):
         cmd = ['git', 'blame', '-ls', '--root', commit.id, '--', path]
         output = subprocess.check_output(cmd, cwd=os.path.abspath(self.path))
         sha1_sums = [line[:40] for line in output.strip().split(b'\n')]
-        return [self[sha1] for sha1 in sha1_sums]
+        return [None if self[sha1] is None else decode_from_git(self[sha1].id) for sha1 in sha1_sums]
 
     def get_blob_or_tree(self, commit, path):
         """Return the Git tree or blob object for `path` at `commit`."""