diff --git a/interfaces/Crafter.Event.cppm b/interfaces/Crafter.Event.cppm
index 4151dad..2312dfb 100644
--- a/interfaces/Crafter.Event.cppm
+++ b/interfaces/Crafter.Event.cppm
@@ -202,7 +202,7 @@ namespace Crafter {
                 }
             }
 #else
-            auto listenersCopy = this->listeners;
+            this->listeners.erase(std::remove(this->listeners.begin(), this->listeners.end(), nullptr), this->listeners.end());
             for (const auto& listenerSlice : listenersCopy) {
                 for (const auto& listener : listenerSlice.second) {
                     listener->function(data);