diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 51ba1c73a..4f8658f5f 100755
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2577,9 +2577,12 @@ static int timehist_sched_change_event(struct perf_tool *tool,
 	 * - previous sched event is out of window - we are done
 	 * - sample time is beyond window user cares about - reset it
 	 *   to close out stats for time window interest
+	 * - If tprev is 0, that is, sched_in event for current task is
+	 *   not recorded, cannot determine whether sched_in event is
+	 *   within time window interest - ignore it
 	 */
 	if (ptime->end) {
-		if (tprev > ptime->end)
+		if (!tprev || tprev > ptime->end)
 			goto out;
 
 		if (t > ptime->end)