diff --git a/coreos.json b/coreos.json
index 3e79d99..5972193 100644
--- a/coreos.json
+++ b/coreos.json
@@ -25,6 +25,7 @@
         "partitions": [
           {
             "label": "swap",
+            "number": 1,
             "sizeMiB": 8192
           }
         ],
@@ -36,7 +37,7 @@
         "path": "/etc/hostname",
         "contents": {
           "compression": "",
-          "source": "data:,coreos1%0A"
+          "source": "data:,coreos-1%0A"
         },
         "mode": 420
       },