diff --git a/libc-test/semver/apple.txt b/libc-test/semver/apple.txt
index 832182dd117b3..f022a006de401 100644
--- a/libc-test/semver/apple.txt
+++ b/libc-test/semver/apple.txt
@@ -849,6 +849,7 @@ LOCAL_PEEREPID
 LOCAL_PEEREUUID
 LOCAL_PEERPID
 LOCAL_PEERUUID
+LOCAL_PEERTOKEN
 LOGIN_PROCESS
 LOG_AUTHPRIV
 LOG_CRON
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 9a5dc357fd038..d991e379ba79a 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -4154,11 +4154,18 @@ pub const TCP_CONNECTION_INFO: ::c_int = 0x106;
 
 pub const SOL_LOCAL: ::c_int = 0;
 
+/// Retrieve peer credentials.
 pub const LOCAL_PEERCRED: ::c_int = 0x001;
+/// Retrieve peer PID.
 pub const LOCAL_PEERPID: ::c_int = 0x002;
+/// Retrieve effective peer PID.
 pub const LOCAL_PEEREPID: ::c_int = 0x003;
+/// Retrieve peer UUID.
 pub const LOCAL_PEERUUID: ::c_int = 0x004;
+/// Retrieve effective peer UUID.
 pub const LOCAL_PEEREUUID: ::c_int = 0x005;
+/// Retrieve peer audit token.
+pub const LOCAL_PEERTOKEN: ::c_int = 0x006;
 
 pub const SOL_SOCKET: ::c_int = 0xffff;