diff --git a/release/arm/release.sh b/release/arm/release.sh
index 5a161976440e..0dc8de7ada85 100755
--- a/release/arm/release.sh
+++ b/release/arm/release.sh
@@ -95,6 +95,10 @@ main() {
 	# Fix broken ports that use kern.osreldate.
 	OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
 	export OSVERSION
+	REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
+	BRANCH=$(chroot ${CHROOTDIR} make -C /usr/src/release -V BRANCH)
+	UNAME_r=${REVISION}-${BRANCH}
+	export UNAME_r
 
 	# Build the 'xdev' target for crochet.
 	eval chroot ${CHROOTDIR} make -C /usr/src \