diff --git a/pkg/mocks/kafka/kafka_client.go b/pkg/mocks/kafka/kafka_client.go
index 5922ce2..7c5508b 100644
--- a/pkg/mocks/kafka/kafka_client.go
+++ b/pkg/mocks/kafka/kafka_client.go
@@ -18,6 +18,7 @@
 import (
 	"fmt"
 	"sync"
+	"time"
 
 	"github.com/opencord/voltha-lib-go/v3/pkg/kafka"
 	"github.com/opencord/voltha-lib-go/v3/pkg/log"
@@ -111,7 +112,7 @@
 	return nil
 }
 
-func (kc *KafkaClient) SubscribeForMetadata(_ func(fromTopic string, timestamp int64)) {
+func (kc *KafkaClient) SubscribeForMetadata(_ func(fromTopic string, timestamp time.Time)) {
 	logger.Debug("SubscribeForMetadata - unimplemented")
 }