diff --git a/headers/os/support/DataIO.h b/headers/os/support/DataIO.h
index 896fd3c1bd..1876fa221b 100644
--- a/headers/os/support/DataIO.h
+++ b/headers/os/support/DataIO.h
@@ -71,4 +71,6 @@ virtual void		_ReservedPositionIO4();
 }
 #endif
 
+#include <MallocIO.h>
+
 #endif	// __sk_data_io_h__