diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h
index 8bdb33ffc032..02de6e62ee37 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.h
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.h
@@ -19,6 +19,6 @@
 #define __XFS_IOCTL32_H__
 
 extern long xfs_file_compat_ioctl(struct file *, unsigned, unsigned long);
-extern long xfs_file_compat_invis_ioctl(struct file *, unsigned, unsigned);
+extern long xfs_file_compat_invis_ioctl(struct file *, unsigned, unsigned long);
 
 #endif /* __XFS_IOCTL32_H__ */