diff --git a/app/router/command/command.go b/app/router/command/command.go
index 55e9f8f7..fd9caa22 100644
--- a/app/router/command/command.go
+++ b/app/router/command/command.go
@@ -55,7 +55,7 @@ func (s *routingServer) OverrideBalancerTarget(ctx context.Context, request *Ove
 
 func (s *routingServer) AddRule(ctx context.Context, request *AddRuleRequest) (*AddRuleResponse, error) {
 	if bo, ok := s.router.(routing.Router); ok {
-		return &AddRuleResponse{}, bo.AddRule(request.Config, request.ShouldAppend, false)
+		return &AddRuleResponse{}, bo.AddRule(request.Config, request.ShouldAppend)
 	}
 	return nil, errors.New("unsupported router implementation")
 
diff --git a/features/routing/router.go b/features/routing/router.go
index b955a133..53761434 100644
--- a/features/routing/router.go
+++ b/features/routing/router.go
@@ -16,7 +16,7 @@ type Router interface {
 
 	// PickRoute returns a route decision based on the given routing context.
 	PickRoute(ctx Context) (Route, error)
-	AddRule(config *serial.TypedMessage, shouldAppend bool, prependRules bool) error
+	AddRule(config *serial.TypedMessage, shouldAppend bool) error
 	RemoveRule(tag string) error
 	RestrictionRule(restriction *route.Restriction, ip net.IP) error
 }
@@ -62,7 +62,7 @@ func (DefaultRouter) PickRoute(ctx Context) (Route, error) {
 }
 
 // AddRule implements Router.
-func (DefaultRouter) AddRule(config *serial.TypedMessage, shouldAppend bool, prependRules bool) error {
+func (DefaultRouter) AddRule(config *serial.TypedMessage, shouldAppend bool) error {
 	return common.ErrNoClue
 }