diff --git a/unix/types_openbsd.go b/unix/types_openbsd.go
index ac419e42..4a4ba636 100644
--- a/unix/types_openbsd.go
+++ b/unix/types_openbsd.go
@@ -243,8 +243,10 @@ type Winsize C.struct_winsize
 
 const (
 	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
+	AT_EACCESS          = C.AT_EACCESS
 	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
+	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
+	AT_REMOVEDIR        = C.AT_REMOVEDIR
 )
 
 // poll
diff --git a/unix/ztypes_openbsd_386.go b/unix/ztypes_openbsd_386.go
index 1fdb0e5f..2a8b1e6f 100644
--- a/unix/ztypes_openbsd_386.go
+++ b/unix/ztypes_openbsd_386.go
@@ -438,8 +438,10 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
-	AT_SYMLINK_FOLLOW   = 0x4
+	AT_EACCESS          = 0x1
 	AT_SYMLINK_NOFOLLOW = 0x2
+	AT_SYMLINK_FOLLOW   = 0x4
+	AT_REMOVEDIR        = 0x8
 )
 
 type PollFd struct {
diff --git a/unix/ztypes_openbsd_amd64.go b/unix/ztypes_openbsd_amd64.go
index e2fc93c7..b1759cf7 100644
--- a/unix/ztypes_openbsd_amd64.go
+++ b/unix/ztypes_openbsd_amd64.go
@@ -438,8 +438,10 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
-	AT_SYMLINK_FOLLOW   = 0x4
+	AT_EACCESS          = 0x1
 	AT_SYMLINK_NOFOLLOW = 0x2
+	AT_SYMLINK_FOLLOW   = 0x4
+	AT_REMOVEDIR        = 0x8
 )
 
 type PollFd struct {
diff --git a/unix/ztypes_openbsd_arm.go b/unix/ztypes_openbsd_arm.go
index 8d34b5a2..e807de20 100644
--- a/unix/ztypes_openbsd_arm.go
+++ b/unix/ztypes_openbsd_arm.go
@@ -439,8 +439,10 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
-	AT_SYMLINK_FOLLOW   = 0x4
+	AT_EACCESS          = 0x1
 	AT_SYMLINK_NOFOLLOW = 0x2
+	AT_SYMLINK_FOLLOW   = 0x4
+	AT_REMOVEDIR        = 0x8
 )
 
 type PollFd struct {
diff --git a/unix/ztypes_openbsd_arm64.go b/unix/ztypes_openbsd_arm64.go
index ea8f1a0d..ff3aecae 100644
--- a/unix/ztypes_openbsd_arm64.go
+++ b/unix/ztypes_openbsd_arm64.go
@@ -432,8 +432,10 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
-	AT_SYMLINK_FOLLOW   = 0x4
+	AT_EACCESS          = 0x1
 	AT_SYMLINK_NOFOLLOW = 0x2
+	AT_SYMLINK_FOLLOW   = 0x4
+	AT_REMOVEDIR        = 0x8
 )
 
 type PollFd struct {
diff --git a/unix/ztypes_openbsd_mips64.go b/unix/ztypes_openbsd_mips64.go
index ec6e8bc3..9ecda691 100644
--- a/unix/ztypes_openbsd_mips64.go
+++ b/unix/ztypes_openbsd_mips64.go
@@ -432,8 +432,10 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
-	AT_SYMLINK_FOLLOW   = 0x4
+	AT_EACCESS          = 0x1
 	AT_SYMLINK_NOFOLLOW = 0x2
+	AT_SYMLINK_FOLLOW   = 0x4
+	AT_REMOVEDIR        = 0x8
 )
 
 type PollFd struct {