diff --git a/doc/guide/LICENSE b/doc/guide/LICENSE
index 094ff2517e..9e2be8b26c 100644
--- a/doc/guide/LICENSE
+++ b/doc/guide/LICENSE
@@ -34,6 +34,12 @@ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 
+The names of the authors and copyright holders must not be used in
+advertising or otherwise to promote the sale, use or other dealing
+in this Software without specific, written prior permission.  Title
+to copyright in this Software shall at all times remain with
+copyright holders.
+
 OpenLDAP is a registered trademark of the OpenLDAP Foundation.
 
 Copyright 1999-2001 The OpenLDAP Foundation, Redwood City,