diff --git a/extra/resources/Makefile.am b/extra/resources/Makefile.am
index fa74b31801..d79d04e66a 100644
--- a/extra/resources/Makefile.am
+++ b/extra/resources/Makefile.am
@@ -1,40 +1,55 @@
 #
 # Copyright 2008-2021 the Pacemaker project contributors
 #
 # The version control history for this file may have further details.
 #
 # This source code is licensed under the GNU General Public License version 2
 # or later (GPLv2+) WITHOUT ANY WARRANTY.
 #
 
 include $(top_srcdir)/mk/common.mk
 include $(top_srcdir)/mk/man.mk
 
 ocfdir			= @OCF_RA_INSTALL_DIR@/pacemaker
 dist_ocf_SCRIPTS	= attribute	\
 			  controld	\
 			  Dummy		\
 			  HealthCPU	\
 			  HealthIOWait	\
 			  ping		\
 			  remote	\
 			  Stateful	\
 			  SystemHealth
 ocf_SCRIPTS		= ClusterMon	\
 			  HealthSMART	\
 			  ifspeed	\
 			  o2cb		\
 			  SysInfo
 
 if BUILD_XML_HELP
 
 man7_MANS = $(ocf_SCRIPTS:%=ocf_pacemaker_%.7) $(dist_ocf_SCRIPTS:%=ocf_pacemaker_%.7)
 DBOOK_OPTS = --stringparam command.prefix ocf_pacemaker_ --stringparam variable.prefix OCF_RESKEY_ --param man.vol 7
 
 ocf_pacemaker_%.xml:  %
 	$(AM_V_GEN)OCF_FUNCTIONS=/dev/null OCF_ROOT=$(OCF_ROOT_DIR) $(abs_builddir)/$< meta-data > $@
 
 endif
 
+
+# Pass correct local values to validate target manually
+RNG		:= /dev/null
+OCF_ROOT	:= /usr/lib/ocf
+
+.PHONY: validate
+validate: all
+	@cat "$(RNG)" >/dev/null 2>/dev/null || { echo "Must specify valid RNG" && false; }
+	@[ -x "$(OCF_ROOT)/lib/heartbeat" ] || { echo "Must specify valid OCF_ROOT" && false; }
+	@for AGENT in $(dist_ocf_SCRIPTS) $(ocf_SCRIPTS); do		\
+		echo -e "\n\n## $$AGENT:";				\
+		OCF_ROOT="$(OCF_ROOT)" "$(builddir)/$$AGENT" meta-data	\
+			| xmllint --noout --relaxng $(RNG) - || break;	\
+	done
+
 clean-generic:
 	rm -f $(man7_MANS) $(ocf_SCRIPTS:%=%.xml) $(dist_ocf_SCRIPTS:%=%.xml) *~