diff --git a/viirb1-2-together.sh b/viirb1-2-together.sh
index 2d4378b..e1a4206 100644
--- a/viirb1-2-together.sh
+++ b/viirb1-2-together.sh
@@ -9,6 +9,6 @@ fi
 id=$1; shift
 
 ./viirb-1-connect-flash-latest-openwrt.sh eth0 192.168.61.1
-# reboot may take longer
-sleep 60
+# reboot may take longer / rewriting the flash
+sleep 120
 ./viirb-2-configure-fully-after-upgrade.sh 192.168.61.1 "$id"