diff --git a/src/knot/server/xfr-handler.c b/src/knot/server/xfr-handler.c
index ffa00140260c1e8974a6b8dfbc118c582a980c56..ba4bab446e74f65fda5f01cfeb3f00880094f84f 100644
--- a/src/knot/server/xfr-handler.c
+++ b/src/knot/server/xfr-handler.c
@@ -1455,6 +1455,7 @@ static int xfr_process_request(xfrworker_t *w, uint8_t *buf, size_t buflen)
 	
 	/* Check if the zone is not discarded. */
 	if (knot_zone_flags(xfr.zone) & KNOT_ZONE_DISCARDED) {
+		dbg_xfr_verb("xfr: request on a discarded zone, ignoring\n");
 		xfr_request_deinit(&xfr);
 		knot_zone_release(xfr.zone);
 		rcu_read_unlock();
diff --git a/src/knot/server/zones.c b/src/knot/server/zones.c
index eff9f6ae0ca1eebcca8e0e80d5c7d861dc6e8d24..79277d2f7b7cd1fcfe182fa1992b16e3f5e25170 100644
--- a/src/knot/server/zones.c
+++ b/src/knot/server/zones.c
@@ -448,8 +448,8 @@ static int zones_refresh_ev(event_t *e)
 			return KNOT_EOK;
 		}
 		
-//		log_zone_info("Attempting to bootstrap zone %s from master\n",
-//			      zd->conf->name);
+		dbg_zones("zones: attempting to bootstrap zone '%s'\n",
+		          zd->conf->name);
 		++zd->xfr_in.scheduled;
 		pthread_mutex_unlock(&zd->xfr_in.lock);
 		
@@ -462,6 +462,7 @@ static int zones_refresh_ev(event_t *e)
 		/* Mark as finished to prevent stalling. */
 		evsched_event_finished(e->parent);
 		int ret = xfr_request(zd->server->xfr_h, &xfr_req);
+		dbg_zones("zones: issued request, ret = %d\n", ret);
 		if (ret != KNOT_EOK) {
 			knot_zone_release(xfr_req.zone); /* Discard */
 		}