diff --git a/cmd/compile.go b/cmd/compile.go
index bbc79a5..e4f287c 100644
--- a/cmd/compile.go
+++ b/cmd/compile.go
@@ -1,6 +1,8 @@
 package cmd // code.bitsetter.de/fun/gosl/cmd
 
 import (
+	"bytes"
+	"encoding/gob"
 	"encoding/json"
 	"fmt"
 	"github.com/spf13/cobra"
@@ -38,6 +40,7 @@ type LayerManifest struct {
 	D      directionType `json:"Direction"`
 	S      int           `json:"Speed"`
 	T      string        `json:"Transparent"`
+	Repeat bool
 	Frames map[int]([][]rune)
 }
 
@@ -118,7 +121,10 @@ func compile(cmd *cobra.Command, args []string) {
 			}
 		}
 	}
-
+	obuf := &bytes.Buffer{}
+	enc := gob.NewEncoder(obuf)
+	enc.Encode(&lvlMan)
+	ioutil.WriteFile(levelFile, obuf.Bytes(), 0644)
 }
 
 func init() {
diff --git a/levels/locoworld/Manifest.json b/levels/locoworld/Manifest.json
index d4a778e..20f3175 100644
--- a/levels/locoworld/Manifest.json
+++ b/levels/locoworld/Manifest.json
@@ -2,17 +2,19 @@
   "Name": "The locomotive!",
   "FPS": 10,
   "Layers" : {
-     "locomotive": {
-	 	"Z-Index": 0,
-		"Direction": 6,
-		"Speed": 2,
-		"Transparent": "•"
-	 },
-	 "background": {
-	 	"Z-Index": 1,
-		"Direction": 6,
-		"Speed": 1,
-		"Transparent": "•"
-	 }
+    "locomotive": {
+      "Z-Index": 0,
+      "Direction": 6,
+      "Speed": 2,
+      "Repeat": false,
+      "Transparent": "•"
+    },
+    "background": {
+      "Z-Index": 1,
+      "Direction": 6,
+      "Speed": 1,
+      "Repeat": true,
+      "Transparent": "•"
+    }
   }
 }