diff --git a/libc-test/semver/apple.txt b/libc-test/semver/apple.txt
index 4d280dc731dfd..89b5cca443395 100644
--- a/libc-test/semver/apple.txt
+++ b/libc-test/semver/apple.txt
@@ -1004,6 +1004,8 @@ NOTE_FORK
 NOTE_LEEWAY
 NOTE_LINK
 NOTE_LOWAT
+NOTE_MACHTIME
+NOTE_MACH_CONTINUOUS_TIME
 NOTE_NONE
 NOTE_NSECONDS
 NOTE_PCTRLMASK
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 06b6c62a63f35..92d724071a3d4 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -4522,6 +4522,8 @@ pub const NOTE_ABSOLUTE: u32 = 0x00000008;
 pub const NOTE_LEEWAY: u32 = 0x00000010;
 pub const NOTE_CRITICAL: u32 = 0x00000020;
 pub const NOTE_BACKGROUND: u32 = 0x00000040;
+pub const NOTE_MACH_CONTINUOUS_TIME: u32 = 0x00000080;
+pub const NOTE_MACHTIME: u32 = 0x00000100;
 pub const NOTE_TRACK: u32 = 0x00000001;
 pub const NOTE_TRACKERR: u32 = 0x00000002;
 pub const NOTE_CHILD: u32 = 0x00000004;