diff --git a/wshandler/wshandler.go b/wshandler/wshandler.go
index fc4986e..a3189d4 100644
--- a/wshandler/wshandler.go
+++ b/wshandler/wshandler.go
@@ -134,6 +134,7 @@ func init() {
 	gob.Register(primitive.A{})
 	gob.Register(primitive.M{})
 	gob.Register(primitive.ObjectID{})
+	gob.Register([]any{})
 }
 
 func NewWebsocketHandler() (*WebsocketHandler, error) {