diff --git a/terraform/files/cloud_init_global.yaml b/terraform/files/cloud_init_global.yaml
index 9d6ad29..8b1dee9 100644
--- a/terraform/files/cloud_init_global.yaml
+++ b/terraform/files/cloud_init_global.yaml
@@ -21,7 +21,7 @@ users:
   shell: /bin/bash
   sudo: ['ALL=(ALL) NOPASSWD:ALL']
   ssh_authorized_keys:
-    - ${ssh_key}
+    - ${SSH_KEY_PUBLIC}
 
 preserve_hostname: false
 manage_etc_hosts: false