diff --git a/doc/Makefile.am b/doc/Makefile.am
index 2c87d6758d..0868fef278 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,33 +1,33 @@
 #
 # doc: Pacemaker code
 #
 # Copyright (C) 2008 Andrew Beekhof
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
 # as published by the Free Software Foundation; either version 2
 # of the License, or (at your option) any later version.
 # 
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 # 
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #
 MAINTAINERCLEANFILES    = Makefile.in
 
 docdir 			= $(datadir)/doc/packages/@PKG_NAME@
 htmlfiles		= crm_cli.html
 txtfiles		= crm_cli.txt
 
 OTHER_DOCS              = AUTHORS COPYING COPYING.LGPL README README.hb2openais
 
 doc_DATA		= $(OTHER_DOCS) $(txtfiles) $(htmlfiles)
 
 EXTRA_DIST		= $(OTHER_DOCS) $(txtfiles) $(htmlfiles)
 
 crm_cli.html: crm_cli.txt
-	asciidoc --unsafe --backend=xhtml11 $<
+	-asciidoc --unsafe --backend=xhtml11 $<