diff --git a/api/test/e2e/balancer_test.go b/api/test/e2e/balancer_test.go
index 1801d959bd..1f9b47a0e6 100644
--- a/api/test/e2e/balancer_test.go
+++ b/api/test/e2e/balancer_test.go
@@ -82,7 +82,9 @@ func TestBalancer_roundrobin_with_weight(t *testing.T) {
 	res := map[string]int{}
 	for i := 0; i < 18; i++ {
 		resp, err = http.DefaultClient.Do(request)
-		assert.Nil(t, err)
+		if err != nil {
+			assert.Equal(t, "", err.Error())
+		}
 		respBody, err = ioutil.ReadAll(resp.Body)
 		body := string(respBody)
 		if _, ok := res[body]; !ok {