diff --git a/libs/ecs/include/psemek/ecs/dispatcher.hpp b/libs/ecs/include/psemek/ecs/dispatcher.hpp
index c2b351f9..782dcde2 100644
--- a/libs/ecs/include/psemek/ecs/dispatcher.hpp
+++ b/libs/ecs/include/psemek/ecs/dispatcher.hpp
@@ -30,7 +30,7 @@ namespace psemek::ecs
 		template <typename Event, typename Handler>
 		void handler(Handler handler)
 		{
-			handlers_[Event::uuid()].push_back([handler = std::move(handler), this](void const * event_ptr){
+			handlers_[Event::uuid()].push_back([handler = std::move(handler), this](void const * event_ptr) mutable {
 				auto const & event = *reinterpret_cast<Event const *>(event_ptr);
 
 				if constexpr (std::invocable<Handler, Event const &, ecs::container &>)
@@ -47,7 +47,7 @@ namespace psemek::ecs
 		template <typename Event, typename ... Components, typename System>
 		void system(System system)
 		{
-			handlers_[Event::uuid()].push_back([system = std::move(system), this, cache = container_->cache<Components...>()](void const * event_ptr){
+			handlers_[Event::uuid()].push_back([system = std::move(system), this, cache = container_->cache<Components...>()](void const * event_ptr) mutable {
 				auto const & event = *reinterpret_cast<Event const *>(event_ptr);
 
 				if constexpr (std::invocable<System, Event const &, ecs::container &, handle, Components & ...>)