diff --git a/flecs.h b/flecs.h
index 74534dc2fe..1f2764ac55 100644
--- a/flecs.h
+++ b/flecs.h
@@ -30567,7 +30567,7 @@ inline T* world::get_mut() const {
 template <typename T>
 inline void world::modified() const {
     flecs::entity e(m_world, _::cpp_type<T>::id(m_world));
-    return e.modified<T>();
+    e.modified<T>();
 }
 
 template <typename First, typename Second>
diff --git a/include/flecs/addons/cpp/impl/world.hpp b/include/flecs/addons/cpp/impl/world.hpp
index f0fa16da4d..74b51c83ac 100644
--- a/include/flecs/addons/cpp/impl/world.hpp
+++ b/include/flecs/addons/cpp/impl/world.hpp
@@ -83,7 +83,7 @@ inline T* world::get_mut() const {
 template <typename T>
 inline void world::modified() const {
     flecs::entity e(m_world, _::cpp_type<T>::id(m_world));
-    return e.modified<T>();
+    e.modified<T>();
 }
 
 template <typename First, typename Second>