diff --git a/metadata.go b/metadata.go
index 8c8ec96..770a885 100644
--- a/metadata.go
+++ b/metadata.go
@@ -31,7 +31,3 @@ func (m *MetadataDecoder) Process() error {
 	return errors.New("not metadata")
 
 }
-
-// CheckRegistry
-// Deprecated
-func (m *MetadataDecoder) CheckRegistry() (notReg []string) { return }
diff --git a/types/registry.go b/types/registry.go
index deb9c72..fc01af1 100644
--- a/types/registry.go
+++ b/types/registry.go
@@ -39,7 +39,19 @@ func HasReg(typeName string) bool {
 	return ok
 }
 
+// Clean all type registry
+func Clean() {
+	TypeRegistry = nil
+	specialRegistry = make(map[string][]Special)
+	V14Types = nil
+	regBaseType()
+}
+
 func init() {
+	regBaseType()
+}
+
+func regBaseType() {
 	registry := make(map[string]interface{})
 	scales := []interface{}{
 		&Null{},