diff --git a/virtcontainers/persist/api/config.go b/virtcontainers/persist/api/config.go
index 8739077367..10f9dbe2af 100644
--- a/virtcontainers/persist/api/config.go
+++ b/virtcontainers/persist/api/config.go
@@ -12,7 +12,8 @@ type Param struct {
 	Value string
 }
 
-type asset struct {
+// Asset saves hypervisor asset
+type Asset struct {
 	Path   string `json:"path"`
 	Custom bool   `json:"bool"`
 }
@@ -90,7 +91,7 @@ type HypervisorConfig struct {
 	// Each value in that map takes precedence over the configured assets.
 	// For example, if there is a value for the "kernel" key in this map,
 	// it will be used for the sandbox's kernel path instead of KernelPath.
-	customAssets map[string]*asset
+	CustomAssets map[string]*Asset
 
 	// BlockDeviceCacheSet specifies cache-related options will be set to block devices or not.
 	BlockDeviceCacheSet bool
diff --git a/virtcontainers/persist/plugin/README.md b/virtcontainers/persist/plugin/README.md
index 7a704d22d7..ec230d15b8 100644
--- a/virtcontainers/persist/plugin/README.md
+++ b/virtcontainers/persist/plugin/README.md
@@ -1,2 +1,2 @@
-This package is a simple placeholder currently which will contains persist storage plugin support,
+This package is a simple placeholder currently which will contain persist storage plugin support,
 e.g. leveldb, sqlite and other possible storage implementations.