diff --git a/swh/model/tests/test_identifiers.py b/swh/model/tests/test_identifiers.py
index 834b923b27db32a711f0c5a54d7230181d49b33d..896225142419d8fdd00d78139bdad7fae1bd4782 100644
--- a/swh/model/tests/test_identifiers.py
+++ b/swh/model/tests/test_identifiers.py
@@ -218,7 +218,8 @@ class RevisionIdentifier(unittest.TestCase):
     def setUp(self):
 
         linus_tz = datetime.timezone(datetime.timedelta(minutes=-420))
-        linus_gpgsig = b'''\
+
+        gpgsig = b'''\
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (Darwin)
 
@@ -337,7 +338,7 @@ dg1KdHOa34shrKDaOVzW
             },
             'metadata': {
                 'extra_headers': [
-                    ['gpgsig', linus_gpgsig],
+                    ['gpgsig', gpgsig],
                 ],
             },
             'message': b'''Merge branch 'master' of git://github.com/alexhenrie/git-po