diff --git a/rpi-update b/rpi-update
index 38495b1..17d4736 100755
--- a/rpi-update
+++ b/rpi-update
@@ -58,7 +58,7 @@ function update_self() {
 	#!/bin/bash
 	if mv "${_tempFileName}" "$0"; then
 		rm -- "\$0"
-		exec env UPDATE=0 /bin/bash "$0" "$FW_RAM"
+		exec env UPDATE=0 /bin/bash "$0" "$FW_RAM" "$FW_REV"
 	else
 		echo "Failed!"
 	fi
@@ -219,7 +219,7 @@ if [[ ${FW_RAM} -ne 240 ]] &&[[ ${FW_RAM} -ne 224 ]] && [[ ${FW_RAM} -ne 192 ]]
 	exit 1
 fi
 echo "Using ARM/GPU memory split of ${FW_RAM}MB/${FW_GPU}MB"
-if [ "${FW_REV}" != "" ]; then
+if [[ ${FW_REV} != "" ]]; then
 	download_rev
 	do_update "updated to revision ${FW_REV}"
 elif [[ -f "${FW_REPOLOCAL}/.git/config" ]]; then