diff --git a/v1/client_test.go b/v1/client_test.go
index 5965543..fbddc55 100644
--- a/v1/client_test.go
+++ b/v1/client_test.go
@@ -309,9 +309,15 @@ func TestMgClient_Chats(t *testing.T) {
 	gock.New(mgURL).
 		Get("/api/bot/v1/chats").
 		Reply(200).
-		BodyString(`[{"id": 1,"customer": {"id": 1, "name": "Test"}, "created_at": "2018-01-01T00:00:00.000000Z"}]`)
+		BodyString(`[
+			{"id": 2,"customer": {"id": 2, "name": "Foo"}, "created_at": "2018-01-01T00:00:00.000000Z"},
+			{"id": 3,"customer": {"id": 3, "name": "Bar"}, "created_at": "2018-01-02T00:00:00.000000Z"}
+		]`)
 
-	req := ChatsRequest{ChannelType: ChannelTypeTelegram}
+	req := ChatsRequest{
+		ChannelType: ChannelTypeTelegram,
+		SinceID:     1,
+	}
 
 	data, status, err := c.Chats(req)
 	if err != nil {
diff --git a/v1/types.go b/v1/types.go
index 2376efc..2d43e5f 100644
--- a/v1/types.go
+++ b/v1/types.go
@@ -154,6 +154,7 @@ type (
 		Since              string `url:"since,omitempty"`
 		Until              string `url:"until,omitempty"`
 		Limit              int    `url:"limit,omitempty"`
+		SinceID            int    `url:"since_id,omitempty"`
 	}
 
 	MembersRequest struct {