diff --git a/protocol/json/client_notify.go b/protocol/json/client_notify.go
index 2fb5762..d5ea9aa 100644
--- a/protocol/json/client_notify.go
+++ b/protocol/json/client_notify.go
@@ -47,7 +47,7 @@ func (ccn *ClientCodecNotify) Method() string {
 	return ccn.notify.Method
 }
 
-func (ccn *ClientCodecNotify) ReadParams(args *[]interface{}) error {
+func (ccn *ClientCodecNotify) ReadParams(args []interface{}) error {
 	if ccn.err == nil && ccn.notify.Params != nil {
 		// Note: if scr.request.Params is nil it's not an error, it's an optional member.
 		// JSON params structured object. Unmarshal to the args object.
diff --git a/protocol/json/server.go b/protocol/json/server.go
index fc580ff..bf0f729 100644
--- a/protocol/json/server.go
+++ b/protocol/json/server.go
@@ -160,7 +160,7 @@ func (scr *ServerCodecRequest) Method() string {
 // absence of expected names MAY result in an error being
 // generated. The names MUST match exactly, including
 // case, to the method's expected parameters.
-func (scr *ServerCodecRequest) ReadParams(args *[]interface{}) error {
+func (scr *ServerCodecRequest) ReadParams(args []interface{}) error {
 	if scr.err == nil && scr.request.Params != nil {
 		// Note: if scr.request.Params is nil it's not an error, it's an optional member.
 		// JSON params structured object. Unmarshal to the args object.
diff --git a/protocol/registry_codec.go b/protocol/registry_codec.go
index d4fa450..9279fb7 100644
--- a/protocol/registry_codec.go
+++ b/protocol/registry_codec.go
@@ -8,6 +8,6 @@ type RegistryCodec interface {
 	// Reads the request and returns the RPC method name.
 	Method() string
 	// Reads the request filling the RPC method args.
-	ReadParams(args *[]interface{}) error
+	ReadParams(args []interface{}) error
 	Complete()
 }
diff --git a/registry.go b/registry.go
index f64e1fd..1e917dd 100644
--- a/registry.go
+++ b/registry.go
@@ -80,7 +80,7 @@ func (rr *rpcRegistry) Invoke(codec protocol.RegistryCodec) (result interface{},
 	pValues, pInstances := methodSpec.getParamValues()
 
 	if nil != pInstances && 0 < len(pInstances) {
-		if errRead := codec.ReadParams(&pInstances); errRead != nil {
+		if errRead := codec.ReadParams(pInstances); errRead != nil {
 			return nil, errRead
 		}
 		pCount := len(pInstances)