diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 62812bef1edf..25d56e0f1c07 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -777,7 +777,7 @@ static void cs_etm__packet_dump(const char *pkt_string, void *data)
 	char queue_nr[64];
 
 	if (verbose)
-		snprintf(queue_nr, sizeof(queue_nr), "Qnr:%d; ", etmq->queue_nr);
+		snprintf(queue_nr, sizeof(queue_nr), "Qnr:%u; ", etmq->queue_nr);
 	else
 		queue_nr[0] = '\0';