diff --git a/src/cmd/acme/time.c b/src/cmd/acme/time.c
index 35982b7..e177713 100644
--- a/src/cmd/acme/time.c
+++ b/src/cmd/acme/time.c
@@ -50,7 +50,7 @@
 	nt = 0;
 	old = msec();
 	for(;;){
-		sleep(1);	/* will sleep minimum incr */
+		sleep(10);	/* longer sleeps here delay recv on ctimer, but 10ms should not be noticeable */
 		new = msec();
 		dt = new-old;
 		old = new;