diff --git a/letsencrypt/renewer.py b/letsencrypt/renewer.py
index 0a490d447..8f7f38c90 100644
--- a/letsencrypt/renewer.py
+++ b/letsencrypt/renewer.py
@@ -179,7 +179,9 @@ def main(cli_args=sys.argv[1:]):
             #       RenewableCert object for this cert at all, which could
             #       dramatically improve performance for large deployments
             #       where autorenewal is widely turned off.
-            cert = storage.RenewableCert(renewal_file, cli_config)
+            cert = storage.RenewableCert(
+                            os.path.join(cli_config.renewal_configs_dir, renewal_file),
+                            cli_config)
         except errors.CertStorageError:
             # This indicates an invalid renewal configuration file, such
             # as one missing a required parameter (in the future, perhaps