doc: fix Makefile dependencies for babeld.
diff --git a/doc/Makefile.am b/doc/Makefile.am
index cd4d71b..dde95ab 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -46,11 +46,11 @@
 quagga.pdf: $(info_TEXINFOS) $(figures_pdf) $(quagga_TEXINFOS)
 	$(TEXI2PDF) -o "$@" $<
 
-quagga_TEXINFOS = appendix.texi basic.texi bgpd.texi filter.texi install.texi \
-	ipv6.texi kernel.texi main.texi ospf6d.texi ospfd.texi overview.texi \
-	protocol.texi ripd.texi ripngd.texi routemap.texi snmp.texi \
-	vtysh.texi routeserver.texi defines.texi $(figures_png) snmptrap.texi \
-	$(figures_txt)
+quagga_TEXINFOS = appendix.texi babeld.texi basic.texi bgpd.texi filter.texi \
+	install.texi ipv6.texi kernel.texi main.texi ospf6d.texi ospfd.texi \
+	overview.texi protocol.texi ripd.texi ripngd.texi routemap.texi \
+	snmp.texi vtysh.texi routeserver.texi defines.texi $(figures_png) \
+	snmptrap.texi $(figures_txt)
 
 .png.eps:
 	$(PNGTOEPS) $< "$@"