diff --git a/packer/preseed/UbuntuServer20.04/user-data b/packer/preseed/UbuntuServer20.04/user-data
index 27b65cd..955b573 100644
--- a/packer/preseed/UbuntuServer20.04/user-data
+++ b/packer/preseed/UbuntuServer20.04/user-data
@@ -3,7 +3,8 @@ autoinstall:
   version: 1
   early-commands:
     # Block inbound SSH to stop Packer trying to connect during initial install
-    - iptables -A INPUT -p tcp --dport 22 -j DROP  locale: en_US
+    - iptables -A INPUT -p tcp --dport 22 -j DROP
+  locale: en_US
   keyboard:
     layout: en
     variant: us