diff --git a/common/rpc_service_test.go b/common/rpc_service_test.go
index 04bc30fe84b3ccc6e944fffe4ff9a9b825ae97b0..4232c9d90bee5a48ed988fa5449c3acbaf64f100 100644
--- a/common/rpc_service_test.go
+++ b/common/rpc_service_test.go
@@ -91,7 +91,7 @@ func TestServiceMap_Register(t *testing.T) {
 
 	// succ
 	s := &TestService{}
-	methods, err = ServiceMap.Register("testporotocol", s)
+	methods, err := ServiceMap.Register("testporotocol", s)
 	assert.NoError(t, err)
 	assert.Equal(t, "MethodOne,MethodThree,methodTwo", methods)
 
diff --git a/registry/zookeeper/registry_test.go b/registry/zookeeper/registry_test.go
index 006093a6e3d59a6d17efac2ee222677f8f021f1c..22658e1adcd57d6b88bdbf3949cae08f90f1cfb5 100644
--- a/registry/zookeeper/registry_test.go
+++ b/registry/zookeeper/registry_test.go
@@ -40,7 +40,7 @@ func Test_Register(t *testing.T) {
 
 	ts, reg, _ := newMockZkRegistry(&regurl)
 	defer ts.Stop()
-	err = reg.Register(url)
+	err := reg.Register(url)
 	children, _ := reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
 	assert.Regexp(t, ".*dubbo%3A%2F%2F127.0.0.1%3A20000%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26category%3Dproviders%26cluster%3Dmock%26dubbo%3Ddubbo-provider-golang-2.6.0%26.*provider", children)
 	assert.NoError(t, err)
@@ -52,7 +52,7 @@ func Test_Subscribe(t *testing.T) {
 	ts, reg, _ := newMockZkRegistry(&regurl)
 
 	//provider register
-    err := reg.Register(url)
+	err := reg.Register(url)
 	assert.NoError(t, err)
 
 	if err != nil {