diff --git a/certbot-apache/certbot_apache/http_01.py b/certbot-apache/certbot_apache/http_01.py
index 58d87298c..4aa3215e6 100644
--- a/certbot-apache/certbot_apache/http_01.py
+++ b/certbot-apache/certbot_apache/http_01.py
@@ -81,7 +81,7 @@ class ApacheHttp01(common.TLSSNI01):
             if vh:
                 self._set_up_include_directive(vh)
             else:
-                for vhost in self._relevant_vhosts():
+                for vh in self._relevant_vhosts():
                     self._set_up_include_directive(vh)
 
         self.configurator.reverter.register_file_creation(