diff --git a/tests/legacy/benchmark/latency_measure/src/micro_sema_lock_release.c b/tests/legacy/benchmark/latency_measure/src/micro_sema_lock_release.c
index 361d3199ece..2697a2ea28b 100644
--- a/tests/legacy/benchmark/latency_measure/src/micro_sema_lock_release.c
+++ b/tests/legacy/benchmark/latency_measure/src/micro_sema_lock_release.c
@@ -113,7 +113,7 @@ int microMutexLockUnlock(void)
 		     timestamp / N_TEST_MUTEX,
 		     SYS_CLOCK_HW_CYCLES_TO_NS_AVG(timestamp, N_TEST_MUTEX));
 	timestamp = TIME_STAMP_DELTA_GET(0);
-	for (i = 0; i <= N_TEST_MUTEX; i++) {
+	for (i = 0; i < N_TEST_MUTEX; i++) {
 		task_mutex_unlock(TEST_MUTEX);
 	}
 	timestamp = TIME_STAMP_DELTA_GET(timestamp);