diff --git a/test/runner.c b/test/runner.c
index d3b37ec9..de1d1e7e 100644
--- a/test/runner.c
+++ b/test/runner.c
@@ -77,7 +77,7 @@ int run_task(task_entry_t *test, int timeout, int benchmark_output) {
   }
 
   /* Wait a little bit to allow servers to start. Racy. */
-  usleep(50);
+  uv_sleep(50);
 
   /* Start the main test process. */
   if (process_start(test->process_name, &processes[process_count]) == -1) {