diff --git a/stepmania/src/archutils/Xbox/arch_setup.h b/stepmania/src/archutils/Xbox/arch_setup.h
index 2d726d158e..1a839e7752 100644
--- a/stepmania/src/archutils/Xbox/arch_setup.h
+++ b/stepmania/src/archutils/Xbox/arch_setup.h
@@ -5,4 +5,8 @@
 #include <xgraphics.h>
 #include <stdio.h>
 
+/* Stubs: */
+HRESULT CoInitialize() { return S_OK; }
+void CoUninitialize() { }
+
 #endif