diff --git a/client/client.go b/client/client.go
index d2c6053..a334273 100644
--- a/client/client.go
+++ b/client/client.go
@@ -110,8 +110,11 @@ func (c *Client) CallTimeout(timeout time.Duration, result interface{}, method s
 
 	select {
 	case <-rs.doneChan:
+		if nil != rs.clientError {
+			return rs.clientError
+		}
 		result = rs.result
-		return rs.clientError
+		return nil
 	case <-t.C:
 		rs.cancel()
 		return newError(method, params, fmt.Errorf("%s Timeout", c.logHeader()))
@@ -304,10 +307,13 @@ func (c *Client) handleResponse(resCodec protocol.ClientResponseCodec) {
 		return
 	}
 	rs := _rs.(*requestState)
-	rs.setError(resCodec.Error())
-	err := resCodec.Result(rs.result)
-	if nil != err {
-		rs.setError(err)
+	if nil != resCodec.Error() {
+		rs.setError(resCodec.Error())
+	} else {
+		err := resCodec.Result(rs.result)
+		if nil != err {
+			rs.setError(err)
+		}
 	}
 
 	rs.done()