diff --git a/service/notification.go b/service/notification.go
index 913d45b04..916b4901b 100644
--- a/service/notification.go
+++ b/service/notification.go
@@ -24,6 +24,7 @@ import (
 	"github.com/vmware/harbor/models"
 	svc_utils "github.com/vmware/harbor/service/utils"
 	"github.com/vmware/harbor/utils/log"
+	"github.com/vmware/harbor/utils/registry"
 
 	"github.com/astaxie/beego"
 )
@@ -54,7 +55,8 @@ func (n *NotificationHandler) Post() {
 			log.Errorf("Failed to match the media type against pattern, error: %v", err)
 			matched = false
 		}
-		if matched && strings.HasPrefix(e.Request.UserAgent, "docker") {
+		if matched && (strings.HasPrefix(e.Request.UserAgent, "docker") ||
+			strings.ToLower(strings.TrimSpace(e.Request.UserAgent)) == strings.ToLower(registry.UserAgent)) {
 			username = e.Actor.Name
 			action = e.Action
 			repo = e.Target.Repository
diff --git a/utils/registry/registry.go b/utils/registry/registry.go
index baaf70e91..cbefbafe2 100644
--- a/utils/registry/registry.go
+++ b/utils/registry/registry.go
@@ -28,6 +28,10 @@ import (
 	"github.com/vmware/harbor/utils/registry/errors"
 )
 
+const (
+	UserAgent string = "registry-client"
+)
+
 // Registry holds information of a registry entity
 type Registry struct {
 	Endpoint *url.URL
@@ -149,8 +153,9 @@ func newClient(endpoint, username string, credential auth.Credential,
 
 	challenges := auth.ParseChallengeFromResponse(resp)
 	authorizer := auth.NewRequestAuthorizer(handlers, challenges)
+	headerModifier := NewHeaderModifier(map[string]string{http.CanonicalHeaderKey("User-Agent"): UserAgent})
 
-	transport := NewTransport(http.DefaultTransport, []RequestModifier{authorizer})
+	transport := NewTransport(http.DefaultTransport, []RequestModifier{authorizer, headerModifier})
 	return &http.Client{
 		Transport: transport,
 	}, nil
diff --git a/utils/registry/transport.go b/utils/registry/transport.go
index f2569b3cd..9c9e6b8e4 100644
--- a/utils/registry/transport.go
+++ b/utils/registry/transport.go
@@ -26,6 +26,26 @@ type RequestModifier interface {
 	ModifyRequest(*http.Request) error
 }
 
+// HeaderModifier adds headers to request
+type HeaderModifier struct {
+	headers map[string]string
+}
+
+// NewHeaderModifier ...
+func NewHeaderModifier(headers map[string]string) *HeaderModifier {
+	return &HeaderModifier{
+		headers: headers,
+	}
+}
+
+// ModifyRequest adds headers to the request
+func (h *HeaderModifier) ModifyRequest(req *http.Request) error {
+	for key, value := range h.headers {
+		req.Header.Add(key, value)
+	}
+	return nil
+}
+
 // Transport holds information about base transport and modifiers
 type Transport struct {
 	transport http.RoundTripper