diff --git a/letsencrypt-apache/letsencrypt_apache/configurator.py b/letsencrypt-apache/letsencrypt_apache/configurator.py
index 50e5ed6be..98b0b8820 100644
--- a/letsencrypt-apache/letsencrypt_apache/configurator.py
+++ b/letsencrypt-apache/letsencrypt_apache/configurator.py
@@ -369,13 +369,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
         vhost_macro = []
 
         for vhost in self.vhosts:
-            # Check domains for validity
-            for name in vhost.get_names():
-                try:
-                    le_util.check_domain_sanity(name)
-                    all_names.add(name)
-                except errors.ConfigurationError:
-                    pass
+            all_names.update(vhost.get_names())
             if vhost.modmacro:
                 vhost_macro.append(vhost.filep)