diff --git a/external/bsd/ntp/dist/libntp/work_fork.c b/external/bsd/ntp/dist/libntp/work_fork.c
index c9a0c4ee349a..9ac25ce62d45 100644
--- a/external/bsd/ntp/dist/libntp/work_fork.c
+++ b/external/bsd/ntp/dist/libntp/work_fork.c
@@ -557,6 +557,9 @@ fork_blocking_child(
 		/* wire into I/O loop */
 		(*addremove_io_fd)(c->resp_read_pipe, is_pipe, FALSE);
 
+		/* wait until child is done */
+		rc = netread(c->resp_read_pipe, &rc, sizeof(rc));
+
 		return;		/* parent returns */
 	}
 
@@ -583,6 +586,10 @@ fork_blocking_child(
 	c->resp_write_pipe = blocking_pipes[3];
 
 	kill_asyncio(0);
+
+	/* Tell parent we are ready */
+	rc = netwrite(c->resp_write_pipe, &rc, sizeof(rc));
+
 	closelog();
 	if (syslog_file != NULL) {
 		fclose(syslog_file);