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-rw-r--r--tools/perf/util/ui/helpline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/ui/helpline.c b/tools/perf/util/ui/helpline.c
index 4f48f5901b3..2f950c2641c 100644
--- a/tools/perf/util/ui/helpline.c
+++ b/tools/perf/util/ui/helpline.c
@@ -64,7 +64,7 @@ int ui_helpline__show_help(const char *format, va_list ap)
static int backlog;
pthread_mutex_lock(&ui__lock);
- ret = vsnprintf(ui_helpline__last_msg + backlog,
+ ret = vscnprintf(ui_helpline__last_msg + backlog,
sizeof(ui_helpline__last_msg) - backlog, format, ap);
backlog += ret;