import urn_to_hrn

diff --git a/sfa/trust/credential.py b/sfa/trust/credential.py
index bed0780..2fd3e92 100644 (file)
--- a/sfa/trust/credential.py
+++ b/sfa/trust/credential.py
@@ -43,6 +43,7 @@ from sfa.trust.certificate import Keypair
 from sfa.trust.credential_legacy import CredentialLegacy\r
 from sfa.trust.rights import Right, Rights\r
 from sfa.trust.gid import GID\r
+from sfa.util.xrn import urn_to_hrn\r
 \r
 # 2 weeks, in seconds \r
 DEFAULT_CREDENTIAL_LIFETIME = 86400 * 14\r