diff --git a/src/platform/platform.h b/src/platform/platform.h
index 1d3c6a4e3e..53dc0aca65 100644
--- a/src/platform/platform.h
+++ b/src/platform/platform.h
@@ -196,6 +196,9 @@ datetime64 platform_get_datetime_now_utc();
 	HWND windows_get_window_handle();
 	void platform_setup_file_associations();
 	void platform_remove_file_associations();
+	// This function cannot be marked as 'static', even though it may seem to be,
+	// as it requires external linkage, which 'static' prevents
+	__declspec(dllexport) int StartOpenRCT(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);
 #endif // __WINDOWS__
 
 #if defined(__LINUX__) || defined(__MACOSX__)