diff --git a/pkg/pixiu/listener.go b/pkg/pixiu/listener.go
index a45bb396f..7abc0e87a 100644
--- a/pkg/pixiu/listener.go
+++ b/pkg/pixiu/listener.go
@@ -107,7 +107,7 @@ func (l *ListenerService) findHttpManager() model.HttpConnectionManager {
 	for _, fc := range l.FilterChains {
 		for _, f := range fc.Filters {
 			if f.Name == constant.HTTPConnectManagerFilter {
-				return *f.Config.(*model.HttpConnectionManager)
+				return f.Config.(model.HttpConnectionManager)
 			}
 		}
 	}
diff --git a/samples/plugins/go.sum b/samples/plugins/go.sum
new file mode 100644
index 000000000..1e010d95c
--- /dev/null
+++ b/samples/plugins/go.sum
@@ -0,0 +1 @@
+github.com/dubbogo/dubbo-go-pixiu-filter v0.1.3/go.mod h1:d6SDK5BHl/QCvg84BN+g6LZS9QzVqnI2+yw0NBu0uac=