diff --git a/config.go b/config.go
new file mode 100644
index 0000000..eca352f
--- /dev/null
+++ b/config.go
@@ -0,0 +1,5 @@
+package main
+
+type config struct {
+	Layers []string `yaml:"layers"`
+}
diff --git a/main.go b/main.go
index 372817d..2d538c4 100644
--- a/main.go
+++ b/main.go
@@ -29,10 +29,6 @@ var (
 	bootVersion string
 )
 
-type config struct {
-	Layers []string `yaml:"layers"`
-}
-
 func main() {
 	runtime.LockOSThread()