diff --git a/README.md b/README.md
index 1d9f9ab..1001c37 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ gcloud beta compute instances create instance-3 \
 --machine-type=f1-micro \
 --subnet=default \
 --network-tier=PREMIUM \
---metadata=startup-script=https://git.mailliet.ovh/ben/GCP-PostInstall/raw/branch/master/docker-install.sh \
+--metadata=startup-script="curl https://git.mailliet.ovh/ben/GCP-PostInstall/raw/branch/master/docker-install.sh |sh" \
 --maintenance-policy=MIGRATE \
 --image=debian-10-buster-v20200521 \
 --image-project=debian-cloud