1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index e50a6b10ee6..5c2ab5357ec 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -224,7 +224,7 @@ static int __cmd_report(void)
 
         perf_session__collapse_resort(session);
         perf_session__output_resort(session, session->events_stats.total);
-        fprintf(stdout, "# Samples: %ld\n#\n", session->events_stats.total);
+        fprintf(stdout, "# Samples: %Ld\n#\n", session->events_stats.total);
         perf_session__fprintf_hists(session, NULL, false, stdout);
         if (sort_order == default_sort_order &&
             parent_pattern == default_parent_pattern)