diff --git a/terraform/gcp/instances.tf b/terraform/gcp/instances.tf
index a1b035dd63..d23064a9e3 100644
--- a/terraform/gcp/instances.tf
+++ b/terraform/gcp/instances.tf
@@ -17,6 +17,7 @@ resource "google_compute_instance" "server" {
   can_ip_forward = true
 
   metadata = {
+    block-project-ssh-keys = true
     block-project-ssh-keys = false
     enable-oslogin         = false
     serial-port-enable     = true