diff --git a/lib/gitlab/ldap/person.rb b/lib/gitlab/ldap/person.rb
index 3c426179375..b81f3e8e8f5 100644
--- a/lib/gitlab/ldap/person.rb
+++ b/lib/gitlab/ldap/person.rb
@@ -14,7 +14,6 @@ module Gitlab
       end
 
       def self.find_by_dn(dn, adapter)
-        dn = Net::LDAP::Filter.escape(dn)
         adapter.user('dn', dn)
       end