diff --git a/registry/protocol/protocol.go b/registry/protocol/protocol.go
index ffdb275..534a4b9 100644
--- a/registry/protocol/protocol.go
+++ b/registry/protocol/protocol.go
@@ -338,10 +338,10 @@
 }
 
 func GetProtocol() protocol.Protocol {
-	if regProtocol == nil {
-		regProtocol = newRegistryProtocol()
+	if regProtocol != nil {
+		return regProtocol
 	}
-	return regProtocol
+	return newRegistryProtocol()
 }
 
 type wrappedInvoker struct {
diff --git a/registry/protocol/protocol_test.go b/registry/protocol/protocol_test.go
index 761d140..0c19da5 100644
--- a/registry/protocol/protocol_test.go
+++ b/registry/protocol/protocol_test.go
@@ -291,8 +291,3 @@
 	v2, _ := regProtocol.bounds.Load(getCacheKey(newUrl))
 	assert.NotNil(t, v2)
 }
-
-func TestGetProtocol(t *testing.T) {
-	singleton := GetProtocol()
-	assert.True(t, singleton == GetProtocol())
-}