doc: add initial nhrpd documentation
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 42af37c..a4d6d95 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -95,6 +95,10 @@
 man_MANS += ripngd.8
 endif
 
+if NHRPD
+man_MANS += nhrpd.8
+endif
+
 if VTYSH
 man_MANS += vtysh.1
 endif
@@ -109,7 +113,7 @@
 
 EXTRA_DIST = BGP-TypeCode draft-zebra-00.ms draft-zebra-00.txt \
 	bgpd.8 isisd.8 ospf6d.8 ospfclient.8 ospfd.8 ripd.8 \
-	ripngd.8 pimd.8 vtysh.1 watchquagga.8 zebra.8 \
+	ripngd.8 nhrpd.8 pimd.8 vtysh.1 watchquagga.8 zebra.8 \
 	mpls/ChangeLog.opaque.txt mpls/cli_summary.txt \
 	mpls/opaque_lsa.txt mpls/ospfd.conf \
 	$(figures_sources) $(figures_png) $(figures_txt) \