diff --git a/nixos-infect b/nixos-infect
index 9eb8587..097ce7d 100755
--- a/nixos-infect
+++ b/nixos-infect
@@ -36,9 +36,9 @@ genUserdata() {
     "server": {
         "provider": "$PROVIDER"
     },
-    "domain": "DOMAIN",
+    "domain": "$DOMAIN",
     "hashedMasterPassword": "$HASHED_PASSWORD",
-    "hostname": "HOSTNAME",
+    "hostname": "$HOSTNAME",
     "username": "$LUSER"
 }
 EOF