diff --git a/rpi-update b/rpi-update
index e589a0b..eb097b0 100755
--- a/rpi-update
+++ b/rpi-update
@@ -107,7 +107,9 @@ function finalise {
 	if [[ ${FW_REV} == "" ]]; then
 		echo " *** Storing current firmware revision"
 		eval ${GITCMD} rev-parse master > "${FW_PATH}/.firmware_revision"
-	fi
+  else
+    echo ${FW_REV} > "${FW_PATH}/.firmware_revision"
+  fi
 	echo " *** Syncing changes to disk"
 	sync
 }