diff --git a/src/sys/include/ubixfs/ubixfs.h b/src/sys/include/ubixfs/ubixfs.h
index 53ddf56..8d7504e 100644
--- a/src/sys/include/ubixfs/ubixfs.h
+++ b/src/sys/include/ubixfs/ubixfs.h
@@ -27,6 +27,7 @@
 #include <ubixos/types.h>
 #include <vfs/file.h>
 #include <sys/device.h>
+#include <mpi/mpi.h>
 
 #define UBIXDISKMAGIC     ((uInt32)0x45) /* The disk magic number */
 #define MAXUBIXPARTITIONS 16