diff --git a/tests/thread_priority_inversion/main.c b/tests/thread_priority_inversion/main.c
index 12e1e83e7b..98c1821eb0 100644
--- a/tests/thread_priority_inversion/main.c
+++ b/tests/thread_priority_inversion/main.c
@@ -70,7 +70,7 @@ void *t_high_handler(void *arg)
     (void) arg;
 
     /* starting working loop after 500 ms */
-    xtimer_usleep(500U * US_PER_MS);
+    xtimer_msleep(500U);
     while (1) {
         puts("t_high: allocating resource...");
         mutex_lock(&res_mtx);