diff --git a/meta-witherspoon/conf/machine/witherspoon.conf b/meta-witherspoon/conf/machine/witherspoon.conf
index ef39de9..40c8357 100644
--- a/meta-witherspoon/conf/machine/witherspoon.conf
+++ b/meta-witherspoon/conf/machine/witherspoon.conf
@@ -8,3 +8,6 @@
 require conf/machine/include/ast2500.inc
 require conf/machine/include/obmc-bsp-common.inc
 require conf/machine/include/ibm.inc
+
+PHOSPHOR_MRW_URI = "git://github.com/open-power/witherspoon-xml"
+PHOSPHOR_MRW_REV = "657550f28ebd09854a93c299a5a5aff182375a66"