diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
index c1942853289dc..20e8a515d36f4 100644
--- a/libc-test/semver/dragonfly.txt
+++ b/libc-test/semver/dragonfly.txt
@@ -1263,6 +1263,7 @@ chroot
 clearerr
 clock_getcpuclockid
 clock_getres
+clock_nanosleep
 clock_settime
 cmsgcred
 cmsghdr
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 68bd4e28b0cf8..59e7e3939eb75 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -4728,6 +4728,11 @@ pub const RB_POWERCYCLE: ::c_int = 0x400000;
 pub const RB_PROBE: ::c_int = 0x10000000;
 pub const RB_MULTIPLE: ::c_int = 0x20000000;
 
+// sys/time.h
+pub const CLOCK_BOOTTIME: ::clockid_t = ::CLOCK_UPTIME;
+pub const CLOCK_REALTIME_COARSE: ::clockid_t = ::CLOCK_REALTIME_FAST;
+pub const CLOCK_MONOTONIC_COARSE: ::clockid_t = ::CLOCK_MONOTONIC_FAST;
+
 // sys/timerfd.h
 
 pub const TFD_NONBLOCK: ::c_int = ::O_NONBLOCK;
@@ -5363,13 +5368,6 @@ extern "C" {
     pub fn getpagesizes(pagesize: *mut ::size_t, nelem: ::c_int) -> ::c_int;
 
     pub fn clock_getcpuclockid2(arg1: ::id_t, arg2: ::c_int, arg3: *mut clockid_t) -> ::c_int;
-    pub fn clock_nanosleep(
-        clk_id: ::clockid_t,
-        flags: ::c_int,
-        rqtp: *const ::timespec,
-        rmtp: *mut ::timespec,
-    ) -> ::c_int;
-
     pub fn strchrnul(s: *const ::c_char, c: ::c_int) -> *mut ::c_char;
 
     pub fn shm_create_largepage(
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index d2cd7794b107e..00a944e42bf2d 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -824,15 +824,12 @@ pub const CLOCK_VIRTUAL: ::clockid_t = 1;
 pub const CLOCK_PROF: ::clockid_t = 2;
 pub const CLOCK_MONOTONIC: ::clockid_t = 4;
 pub const CLOCK_UPTIME: ::clockid_t = 5;
-pub const CLOCK_BOOTTIME: ::clockid_t = CLOCK_UPTIME;
 pub const CLOCK_UPTIME_PRECISE: ::clockid_t = 7;
 pub const CLOCK_UPTIME_FAST: ::clockid_t = 8;
 pub const CLOCK_REALTIME_PRECISE: ::clockid_t = 9;
 pub const CLOCK_REALTIME_FAST: ::clockid_t = 10;
-pub const CLOCK_REALTIME_COARSE: ::clockid_t = CLOCK_REALTIME_FAST;
 pub const CLOCK_MONOTONIC_PRECISE: ::clockid_t = 11;
 pub const CLOCK_MONOTONIC_FAST: ::clockid_t = 12;
-pub const CLOCK_MONOTONIC_COARSE: ::clockid_t = CLOCK_MONOTONIC_FAST;
 pub const CLOCK_SECOND: ::clockid_t = 13;
 pub const CLOCK_THREAD_CPUTIME_ID: ::clockid_t = 14;
 pub const CLOCK_PROCESS_CPUTIME_ID: ::clockid_t = 15;
@@ -1493,6 +1490,13 @@ extern "C" {
         atflag: ::c_int,
     ) -> ::c_int;
 
+    pub fn clock_nanosleep(
+        clk_id: ::clockid_t,
+        flags: ::c_int,
+        rqtp: *const ::timespec,
+        rmtp: *mut ::timespec,
+    ) -> ::c_int;
+
     pub fn clock_getres(clk_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;
     pub fn clock_gettime(clk_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;
     pub fn clock_settime(clk_id: ::clockid_t, tp: *const ::timespec) -> ::c_int;