diff --git a/rpc/datatype_string.go b/rpc/datatype_string.go
new file mode 100644
index 0000000..9affed2
--- /dev/null
+++ b/rpc/datatype_string.go
@@ -0,0 +1,17 @@
+// Code generated by "stringer -type=DataType"; DO NOT EDIT.
+
+package rpc
+
+import "fmt"
+
+const _DataType_name = "DataTypeNoneDataTypeControlDataTypeMarshaledJSONDataTypeOctets"
+
+var _DataType_index = [...]uint8{0, 12, 27, 48, 62}
+
+func (i DataType) String() string {
+	i -= 1
+	if i >= DataType(len(_DataType_index)-1) {
+		return fmt.Sprintf("DataType(%d)", i+1)
+	}
+	return _DataType_name[_DataType_index[i]:_DataType_index[i+1]]
+}
diff --git a/rpc/frame_layer.go b/rpc/frame_layer.go
index a75c15f..9d6327a 100644
--- a/rpc/frame_layer.go
+++ b/rpc/frame_layer.go
@@ -57,6 +57,7 @@ func NewErrorHeader(status Status, format string, args ...interface{}) (h *Heade
 	return
 }
 
+//go:generate stringer -type=DataType
 type DataType uint8
 
 const (