diff --git a/sys_macosx.c b/sys_macosx.c
index 807d62e..701c078 100644
--- a/sys_macosx.c
+++ b/sys_macosx.c
@@ -451,6 +451,39 @@ legacy_MacOSX_Finalise(void)
 
 /* ================================================== */
 
+#if HAVE_CLOCK_GETTIME
+int
+clock_gettime(clockid_t clock_id, struct timespec *ts)
+{
+  /* Check that the system clock_gettime symbol is actually present before
+     attempting to call it. The symbol is available in macOS 10.12
+     and later. */
+
+  static int init = 0;
+  static int (*sys_clock_gettime)(clockid_t, struct timespec *) = NULL;
+  int ret = 0;
+
+  if (!init) {
+    sys_clock_gettime = dlsym(RTLD_NEXT, "clock_gettime");
+    init = 1;
+  }
+
+  if (sys_clock_gettime != NULL) {
+    ret = sys_clock_gettime(clock_id, ts);
+  } else {
+    struct timeval tv;
+
+    if (gettimeofday(&tv, NULL) < 0)
+      LOG_FATAL("gettimeofday() failed : %s", strerror(errno));
+
+    UTI_TimevalToTimespec(&tv, ts);
+  }
+  return ret;
+}
+#endif
+
+/* ================================================== */
+
 void
 SYS_MacOSX_Initialise(void)
 {