diff --git a/src/nostalgia/core/core.hpp b/src/nostalgia/core/core.hpp
index 621f34f0..a841bc88 100644
--- a/src/nostalgia/core/core.hpp
+++ b/src/nostalgia/core/core.hpp
@@ -16,7 +16,7 @@
 
 namespace nostalgia::core {
 
-using event_handler = int(*)(void);
+using event_handler = int(*)(Context*);
 
 [[nodiscard]] ox::Error init(Context *ctx);
 
diff --git a/src/nostalgia/core/gba/core.arm.cpp b/src/nostalgia/core/gba/core.arm.cpp
index 421055ef..16780d13 100644
--- a/src/nostalgia/core/gba/core.arm.cpp
+++ b/src/nostalgia/core/gba/core.arm.cpp
@@ -21,11 +21,11 @@ extern volatile gba_timer_t g_timerMs;
 gba_timer_t g_wakeupTime;
 event_handler g_eventHandler = nullptr;
 
-ox::Error run(Context*) {
+ox::Error run(Context *ctx) {
 	g_wakeupTime = 0;
 	while (1) {
 		if (g_wakeupTime <= g_timerMs && g_eventHandler) {
-			auto sleepTime = g_eventHandler();
+			auto sleepTime = g_eventHandler(ctx);
 			if (sleepTime >= 0) {
 				g_wakeupTime = g_timerMs + static_cast<unsigned>(sleepTime);
 			} else {
diff --git a/src/nostalgia/player/main.cpp b/src/nostalgia/player/main.cpp
index d939dc91..c74136f8 100644
--- a/src/nostalgia/player/main.cpp
+++ b/src/nostalgia/player/main.cpp
@@ -17,7 +17,7 @@ using namespace nostalgia;
 static unsigned spriteX = 72;
 static unsigned spriteY = 64;
 
-static int mainLoop() {
+static int mainLoop(core::Context*) {
 	if (core::buttonDown(core::GamePad_Right)) {
 		spriteX += 2;
 	} else if (core::buttonDown(core::GamePad_Left)) {