diff --git a/openpower/package/machine-xml/machine-xml.mk b/openpower/package/machine-xml/machine-xml.mk
index 29170de..61070e3 100644
--- a/openpower/package/machine-xml/machine-xml.mk
+++ b/openpower/package/machine-xml/machine-xml.mk
@@ -71,7 +71,8 @@
 
         # generate the system mrw xml
         perl -I $(MRW_HB_TOOLS) \
-        $(MRW_HB_TOOLS)/processMrw.pl -x $(MRW_SCRATCH)/$(BR2_OPENPOWER_MACHINE_XML_FILENAME)
+        $(MRW_HB_TOOLS)/processMrw.pl -x $(MRW_SCRATCH)/$(BR2_OPENPOWER_MACHINE_XML_FILENAME) \
+        -o $(MRW_SCRATCH)/$(BR2_OPENPOWER_MRW_XML_FILENAME)$
 
 	$(if $(BR2_OPENPOWER_MACHINE_XML_FILTER_UNWANTED_ATTRIBUTES), $(call MACHINE_XML_FILTER_UNWANTED_ATTRIBUTES))