diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 2ce87ef..f856a02 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -805,7 +805,7 @@
 	add_sched_event_wakeup(waker, timestamp, wakee);
 }
 
-static unsigned long cpu_last_switched[MAX_CPUS];
+static u64 cpu_last_switched[MAX_CPUS];
 
 static void
 replay_switch_event(struct trace_switch_event *switch_event,