diff --git a/src/lib/swim/swim.c b/src/lib/swim/swim.c
index 54c5b3250e76c5c3db46f05c708d4a19bd3b05c3..725ebf222856f84e609dae4d52ca955489fb9f5b 100644
--- a/src/lib/swim/swim.c
+++ b/src/lib/swim/swim.c
@@ -1797,11 +1797,18 @@ swim_cfg(struct swim *swim, const char *uri, double heartbeat_rate,
 	} else {
 		addr = swim->self->addr;
 	}
-	if (swim->round_tick.repeat != heartbeat_rate && heartbeat_rate > 0)
-		swim_ev_timer_set(&swim->round_tick, 0, heartbeat_rate);
-
-	if (swim->wait_ack_tick.repeat != ack_timeout && ack_timeout > 0)
-		swim_ev_timer_set(&swim->wait_ack_tick, 0, ack_timeout);
+	struct ev_timer *t = &swim->round_tick;
+	if (t->repeat != heartbeat_rate && heartbeat_rate > 0) {
+		swim_ev_timer_set(t, 0, heartbeat_rate);
+		if (swim_ev_is_active(t))
+			swim_ev_timer_again(loop(), t);
+	}
+	t = &swim->wait_ack_tick;
+	if (t->repeat != ack_timeout && ack_timeout > 0) {
+		swim_ev_timer_set(t, 0, ack_timeout);
+		if (swim_ev_is_active(t))
+			swim_ev_timer_again(loop(), t);
+	}
 
 	if (new_self != NULL) {
 		swim->self->status = MEMBER_LEFT;
diff --git a/src/lib/swim/swim_ev.h b/src/lib/swim/swim_ev.h
index b68ed9e19fbae757f3ce0d73c2f49ba54e5a782e..fe261ff38bfe09a983a6d8d0d0790e1d3893a504 100644
--- a/src/lib/swim/swim_ev.h
+++ b/src/lib/swim/swim_ev.h
@@ -52,6 +52,8 @@ swim_ev_timer_again(struct ev_loop *loop, struct ev_timer *watcher);
 void
 swim_ev_timer_stop(struct ev_loop *loop, struct ev_timer *watcher);
 
+#define swim_ev_is_active ev_is_active
+
 #define swim_ev_init ev_init
 
 #define swim_ev_timer_init ev_timer_init