diff --git a/certbot/certbot/plugins/enhancements.py b/certbot/certbot/plugins/enhancements.py
index 3b85813b6..a532b06d5 100644
--- a/certbot/certbot/plugins/enhancements.py
+++ b/certbot/certbot/plugins/enhancements.py
@@ -201,7 +201,7 @@ class OCSPPrefetchEnhancement(object):
         :param lineage: Certificate lineage object
         :type lineage: certbot.storage.RenewableCert
         :param domains: List of domains in certificate to enhance
-        :type domains: str
+        :type domains: `list` of `str`
         """