diff --git a/rpi-update b/rpi-update
index 026e521..cfb062d 100755
--- a/rpi-update
+++ b/rpi-update
@@ -201,7 +201,7 @@ if [[ ${FW_REV} != "" ]]; then
 	do_update "updated to revision ${FW_REV}"
 elif [[ -f "${FW_REPOLOCAL}/.git/config" ]]; then
 	# ask git server version before spending time cloning
-	GITREV=$(git ls-remote -h ${REPO_URI} refs/heads/master | awk '{print $1}')
+	GITREV=$(git ls-remote -h ${REPO_URI} refs/heads/${BRANCH} | awk '{print $1}')
 	if [[ -f "${FW_PATH}/.firmware_revision" ]] && [[ $(cat "${FW_PATH}/.firmware_revision") == "$GITREV" ]]; then
 		echo " *** Your firmware is already up to date"
 		# no changes made, nothing to finalise