diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 0b0d5f7..0aafe85 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -274,7 +274,12 @@
 	    event->group_leader->state < PERF_EVENT_STATE_INACTIVE)
 		return;
 
-	event->total_time_enabled = ctx->time - event->tstamp_enabled;
+	if (ctx->is_active)
+		run_end = ctx->time;
+	else
+		run_end = event->tstamp_stopped;
+
+	event->total_time_enabled = run_end - event->tstamp_enabled;
 
 	if (event->state == PERF_EVENT_STATE_INACTIVE)
 		run_end = event->tstamp_stopped;