diff --git a/mount/mount_unix.go b/mount/mount_unix.go
index 6741293f8..95da9428e 100644
--- a/mount/mount_unix.go
+++ b/mount/mount_unix.go
@@ -1,4 +1,4 @@
-// +build darwin freebsd
+// +build darwin freebsd openbsd
 
 /*
    Copyright The containerd Authors.
diff --git a/mount/mountinfo_freebsd.go b/mount/mountinfo_bsd.go
similarity index 98%
rename from mount/mountinfo_freebsd.go
rename to mount/mountinfo_bsd.go
index bbe79767e..8f8dbf95a 100644
--- a/mount/mountinfo_freebsd.go
+++ b/mount/mountinfo_bsd.go
@@ -1,3 +1,5 @@
+// +build freebsd openbsd
+
 /*
    Copyright The containerd Authors.
 
diff --git a/mount/mountinfo_unsupported.go b/mount/mountinfo_unsupported.go
index eba602f1a..ae998db6b 100644
--- a/mount/mountinfo_unsupported.go
+++ b/mount/mountinfo_unsupported.go
@@ -1,4 +1,4 @@
-// +build !linux,!freebsd,!solaris freebsd,!cgo solaris,!cgo
+// +build !linux,!freebsd,!solaris,!openbsd freebsd,!cgo solaris,!cgo openbsd,!cgo
 
 /*
    Copyright The containerd Authors.