diff --git a/unix/syscall_linux_amd64.go b/unix/syscall_linux_amd64.go
index 6690e0d..7a89584 100644
--- a/unix/syscall_linux_amd64.go
+++ b/unix/syscall_linux_amd64.go
@@ -7,6 +7,7 @@
 import "syscall"
 
 //sys	Chown(path string, uid int, gid int) (err error)
+//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
 //sys	Fchown(fd int, uid int, gid int) (err error)
 //sys	Fstat(fd int, stat *Stat_t) (err error)
 //sys	Fstatfs(fd int, buf *Statfs_t) (err error)