diff --git a/lib/fs/fadvise_unix.go b/lib/fs/fadvise_unix.go
index 480a45b2f..e578a4aad 100644
--- a/lib/fs/fadvise_unix.go
+++ b/lib/fs/fadvise_unix.go
@@ -1,4 +1,4 @@
-// +buid linux freebsd
+// +build linux freebsd
 
 package fs