diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index a27945c279ef..2c09842469f1 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -36,7 +36,7 @@ static int snprintf_hex(char *buf, size_t size, unsigned char *data, size_t len)
 	size_t i;
 
 	for (i = 0; i < len; i++)
-		ret += snprintf(buf + ret, size - ret, "%02x", data[i]);
+		ret += scnprintf(buf + ret, size - ret, "%02x", data[i]);
 	return ret;
 }
 
@@ -140,7 +140,7 @@ static int synthesize_bpf_prog_name(char *buf, int size,
 	const struct btf_type *t;
 	int name_len;
 
-	name_len = snprintf(buf, size, "bpf_prog_");
+	name_len = scnprintf(buf, size, "bpf_prog_");
 	name_len += snprintf_hex(buf + name_len, size - name_len,
 				 prog_tags[sub_id], BPF_TAG_SIZE);
 	if (btf) {
@@ -153,9 +153,10 @@ static int synthesize_bpf_prog_name(char *buf, int size,
 			short_name = info->name;
 	} else
 		short_name = "F";
-	if (short_name)
-		name_len += snprintf(buf + name_len, size - name_len,
-				     "_%s", short_name);
+	if (short_name) {
+		name_len += scnprintf(buf + name_len, size - name_len,
+				      "_%s", short_name);
+	}
 	return name_len;
 }