diff --git a/meta-phosphor/classes/mrw-rev.bbclass b/meta-phosphor/classes/mrw-rev.bbclass
new file mode 100644
index 0000000..2998314
--- /dev/null
+++ b/meta-phosphor/classes/mrw-rev.bbclass
@@ -0,0 +1,5 @@
+MRW_API_SRC_URI ?= "git://github.com/open-power/serverwiz.git;subpath=scripts"
+MRW_API_SRCREV ?= "04f15f37e9ab6c09412a0abcffb87e9aefcc5368"
+
+MRW_PATCH_SRC_URI ?= "git://github.com/openbmc/phosphor-mrw-tools"
+MRW_PATCH_SRCREV ?= "7a68567af7bf121143ef135152a39723518b6e06"
diff --git a/meta-phosphor/common/recipes-phosphor/mrw/mrw-api-native.bb b/meta-phosphor/common/recipes-phosphor/mrw/mrw-api-native.bb
index 01bff61..1930388 100644
--- a/meta-phosphor/common/recipes-phosphor/mrw/mrw-api-native.bb
+++ b/meta-phosphor/common/recipes-phosphor/mrw/mrw-api-native.bb
@@ -8,11 +8,12 @@
 inherit native
 inherit perlnative
 inherit cpan-base
+inherit mrw-rev
 
 DEPENDS += "libxml-simple-perl-native json-perl-native"
 
-SRC_URI += "git://github.com/open-power/serverwiz.git;subpath=scripts"
-SRCREV = "04f15f37e9ab6c09412a0abcffb87e9aefcc5368"
+SRC_URI += "${MRW_API_SRC_URI}"
+SRCREV = "${MRW_API_SRCREV}"
 
 do_install() {
     install -d ${D}${PERLLIBDIRS_class-native}/perl/site_perl/${PERLVERSION}/mrw
diff --git a/meta-phosphor/common/recipes-phosphor/mrw/mrw-patch-native.bb b/meta-phosphor/common/recipes-phosphor/mrw/mrw-patch-native.bb
index 05d5baa..b67b262 100644
--- a/meta-phosphor/common/recipes-phosphor/mrw/mrw-patch-native.bb
+++ b/meta-phosphor/common/recipes-phosphor/mrw/mrw-patch-native.bb
@@ -6,11 +6,12 @@
 
 inherit obmc-phosphor-license
 inherit native
+inherit mrw-rev
 
 DEPENDS += "python-native python-lxml-native"
 
-SRC_URI += "git://github.com/openbmc/phosphor-mrw-tools"
-SRCREV = "7a68567af7bf121143ef135152a39723518b6e06"
+SRC_URI += "${MRW_PATCH_SRC_URI}"
+SRCREV = "${MRW_PATCH_SRCREV}"
 
 do_install() {
     install -d ${D}${bindir}/obmc-mrw