diff --git a/letsencrypt-nginx/letsencrypt_nginx/parser.py b/letsencrypt-nginx/letsencrypt_nginx/parser.py
index fb79703dc..873986c76 100644
--- a/letsencrypt-nginx/letsencrypt_nginx/parser.py
+++ b/letsencrypt-nginx/letsencrypt_nginx/parser.py
@@ -411,7 +411,7 @@ def _regex_match(target_name, name):
             return True
         else:
             return False
-    except re.error:
+    except re.error: # pragma: no cover
         # perl-compatible regexes are sometimes not recognized by python
         return False