diff --git a/tail_posix.go b/tail_posix.go
index 56e31d9..bc4dc33 100644
--- a/tail_posix.go
+++ b/tail_posix.go
@@ -1,4 +1,4 @@
-// +build linux darwin freebsd netbsd
+// +build linux darwin freebsd netbsd openbsd
 
 package tail