diff --git a/gerrit_util.py b/gerrit_util.py
index d70fb2d66..5c8876306 100644
--- a/gerrit_util.py
+++ b/gerrit_util.py
@@ -893,9 +893,9 @@ class GitCredsAuthenticator(_Authenticator):
             return True
         try:
             info = GetAccountDetails(host, authenticator=cls())
-        except auth.LoginRequiredError:
+        except auth.GitLoginRequiredError:
             LOGGER.debug(
-                "Cannot check Gerrit account existence; missing luci-auth login"
+                "Cannot check Gerrit account existence; missing git-credential-luci login"
             )
             return False
         except GerritError as e: