diff --git a/deps/ox/src/ox/event/signal.hpp b/deps/ox/src/ox/event/signal.hpp
index 40cab5a9c..4cea924c9 100644
--- a/deps/ox/src/ox/event/signal.hpp
+++ b/deps/ox/src/ox/event/signal.hpp
@@ -43,11 +43,11 @@ class Signal {
 			virtual const void *receiver() noexcept { return nullptr; }
 		};
 
-		template<typename RetT>
+		template<typename F>
 		struct FunctionSlot: public BaseSlot {
-			RetT (*f)(Args...);
+			F f;
 
-			explicit FunctionSlot(RetT (*f)(Args...)) {
+			explicit FunctionSlot(F f) {
 				this->f = f;
 			}
 
@@ -150,7 +150,7 @@ Signal<Args...>::~Signal() noexcept {
 
 template<class... Args>
 void Signal<Args...>::connect(Error(*f)(Args...)) const noexcept {
-	m_slots.emplace_back(new FunctionSlot(f));
+	m_slots.emplace_back(new FunctionSlot<decltype(f)>(f));
 }
 
 template<class... Args>