--- a/log.c
+++ b/log.c
@@ -595,14 +595,14 @@
 		    olast_event == 0 ? -1 : (long)(now - olast_event)));
 		if (rl->hysteresis_start == 0) {
 			/* active, but under threshold; hysteresis */
-			if (olast_event + rl->hysteresis < now) {
+			if (olast_event + (time_t)rl->hysteresis < now) {
 				/* hysteresis expired before this event */
 				RLDBG(("hysteresis preexpired"));
 				goto inactive;
 			}
 			RLDBG(("start hysteresis"));
 			rl->hysteresis_start = now;
-		} else if (rl->hysteresis_start + rl->hysteresis < now) {
+		} else if (rl->hysteresis_start + (time_t)rl->hysteresis < now) {
 			/* Hysteresis period expired, transition to inactive */
 			RLDBG(("complete hysteresis"));
  inactive:
@@ -640,7 +640,7 @@
 		*active = 1;
 	RLDBG(("log_every=%u since_log=%ld", rl->log_every,
 	    (long)(now - rl->last_log)));
-	if (rl->log_every > 0 && now >= rl->last_log + rl->log_every) {
+	if (rl->log_every > 0 && now >= rl->last_log + (time_t)rl->log_every) {
 		RLDBG(("periodic: since_last=%u", rl->ratelimited_events));
 		rl->last_log = now;
 		if (events_dropped != NULL) {