diff --git a/attrs_unix.go b/attrs_unix.go
index 371ae9b9..96ffc03d 100644
--- a/attrs_unix.go
+++ b/attrs_unix.go
@@ -1,5 +1,5 @@
-//go:build darwin || dragonfly || freebsd || (!android && linux) || netbsd || openbsd || solaris || aix || js
-// +build darwin dragonfly freebsd !android,linux netbsd openbsd solaris aix js
+//go:build darwin || dragonfly || freebsd || (!android && linux) || netbsd || openbsd || solaris || aix || js || zos
+// +build darwin dragonfly freebsd !android,linux netbsd openbsd solaris aix js zos
 
 package sftp
 
diff --git a/ls_unix.go b/ls_unix.go
index 0beba32b..aa230dc2 100644
--- a/ls_unix.go
+++ b/ls_unix.go
@@ -1,5 +1,5 @@
-//go:build aix || darwin || dragonfly || freebsd || (!android && linux) || netbsd || openbsd || solaris || js
-// +build aix darwin dragonfly freebsd !android,linux netbsd openbsd solaris js
+//go:build aix || darwin || dragonfly || freebsd || (!android && linux) || netbsd || openbsd || solaris || js || zos
+// +build aix darwin dragonfly freebsd !android,linux netbsd openbsd solaris js zos
 
 package sftp