diff --git a/unix/zerrors_linux_386.go b/unix/zerrors_linux_386.go
index 93383aa..02a0861 100644
--- a/unix/zerrors_linux_386.go
+++ b/unix/zerrors_linux_386.go
@@ -1755,6 +1755,7 @@
 	TUNSETVNETBE                         = 0x400454de
 	TUNSETVNETHDRSZ                      = 0x400454d8
 	TUNSETVNETLE                         = 0x400454dc
+	UMOUNT_NOFOLLOW                      = 0x8
 	VDISCARD                             = 0xd
 	VEOF                                 = 0x4
 	VEOL                                 = 0xb