diff --git a/Lib/ldap/controls/openldap.py b/Lib/ldap/controls/openldap.py
index 8480e7c..99c2baa 100644
--- a/Lib/ldap/controls/openldap.py
+++ b/Lib/ldap/controls/openldap.py
@@ -4,7 +4,7 @@
 
 See http://www.python-ldap.org/ for project details.
 
-$Id: openldap.py,v 1.5 2015/10/24 16:21:14 stroeder Exp $
+$Id: openldap.py,v 1.6 2015/10/24 16:21:56 stroeder Exp $
 """
 
 import ldap.controls
@@ -15,7 +15,8 @@
 
 
 __all__ = [
-  'SearchNoOpControl'
+  'SearchNoOpControl',
+  'SearchNoOpMixIn',
 ]