1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 502daff76ceb..e6bb04b5b09b 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1252,7 +1252,7 @@ static int hists__browser_title(struct hists *hists,
 
         nr_samples = convert_unit(nr_samples, &unit);
         printed = scnprintf(bf, size,
-                           "Samples: %lu%c of event '%s', Event count (approx.): %lu",
+                           "Samples: %lu%c of event '%s', Event count (approx.): %" PRIu64,
                            nr_samples, unit, ev_name, nr_events);