diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2fa682f07b..6265f62ab8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1351,6 +1351,7 @@ set(DUSK_FILES
     src/dusk/globals.cpp
     src/dusk/mtx.cpp
     src/dusk/J3DTransforms_C.cpp
+    src/m_Do/m_Do_main.cpp # TODO: move this to a more appropriate location, it's not really dusk-specific
     )
 
 source_group("dolzel" FILES ${DOLZEL_FILES} ${Z2AUDIOLIB_FILES} ${SSYSTEM_FILES} ${JSYSTEM_FILES} ${REL_FILES})
diff --git a/src/m_Do/m_Do_main.cpp b/src/m_Do/m_Do_main.cpp
index 9f753ef4a9..2f337e254b 100644
--- a/src/m_Do/m_Do_main.cpp
+++ b/src/m_Do/m_Do_main.cpp
@@ -872,7 +872,7 @@ static u8 mainThreadStack[32768];
 
 OSThread mainThread;
 
-void game_main(int argc, const char* argv[]) {
+extern "C" void game_main(int argc, const char* argv[]) {
     OSThread* current_thread = OSGetCurrentThread();
     u8* stack = mainThreadStack;
     mDoMain::sPowerOnTime = OSGetTime();