diff --git a/coreos.json b/coreos.json
index d232247..d34600d 100644
--- a/coreos.json
+++ b/coreos.json
@@ -19,6 +19,20 @@
     ]
   },
   "storage": {
+    "disks": [
+      {
+        "device": "/dev/sda",
+        "partitions": [
+          {
+            "label": "swap",
+            "number": 5,
+            "resize": true,
+            "sizeMiB": 8192
+          }
+        ],
+        "wipeTable": false
+      }
+    ],
     "files": [
       {
         "path": "/etc/hostname",
@@ -68,10 +82,21 @@
           "source": "data:;base64,W3VwZGF0ZXNdCnN0cmF0ZWd5PSJwZXJpb2RpYyIKW1t1cGRhdGVzLnBlcmlvZGljLndpbmRvd11dCmRheXM9WyAiU2F0IiwgIlN1biIgXQpzdGFydF90aW1lPSIyMjozMCIKbGVuZ3RoX21pbnV0ZXM9NjAK"
         }
       }
+    ],
+    "filesystems": [
+      {
+        "device": "/dev/disk/by-partlabel/swap",
+        "format": "swap"
+      }
     ]
   },
   "systemd": {
     "units": [
+      {
+        "contents": "# Generated by Butane\n[Swap]\nWhat=/dev/disk/by-partlabel/swap\n\n[Install]\nRequiredBy=swap.target",
+        "enabled": true,
+        "name": "dev-disk-by\\x2dpartlabel-swap.swap"
+      },
       {
         "dropins": [
           {