diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 04e0837f7d0bf300b27463566aaf7ee51c4eba9b..c03c644e83d86eb8fcb1f029d6ee6d0af001d06d 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -2257,6 +2257,8 @@ pub const IPV6_RECVPKTINFO: ::c_int = 61;
 pub const TCP_NOPUSH: ::c_int = 4;
 pub const TCP_NOOPT: ::c_int = 8;
 pub const TCP_KEEPALIVE: ::c_int = 0x10;
+pub const TCP_KEEPINTVL: ::c_int = 0x101;
+pub const TCP_KEEPCNT: ::c_int = 0x102;
 /// Enable/Disable TCP Fastopen on this socket
 pub const TCP_FASTOPEN: ::c_int = 0x105;