diff --git a/extension.h b/extension.h
index bf409cb..73732b9 100644
--- a/extension.h
+++ b/extension.h
@@ -49,7 +49,7 @@ class Sample final : public SDKExtension, public IPluginsListener, public ISMEnt
 {
 public:
 	using pack_ent_listeners_t = std::vector<const parallel_pack_listener *>;
-	pack_ent_listeners_t pack_ent_listeners;
+	pack_ent_listeners_t pack_ent_listeners{};
 
 	bool add_listener(const parallel_pack_listener *ptr) noexcept override final;
 	bool remove_listener(const parallel_pack_listener *ptr) noexcept override final;