diff --git a/test/runner.c b/test/runner.c
index f7bea09c..9fbc141e 100644
--- a/test/runner.c
+++ b/test/runner.c
@@ -165,8 +165,12 @@ int run_test(const char* test, int timeout, int benchmark_output) {
              sizeof errmsg,
              "exit code %d",
              status);
+    goto out;
   }
 
+  /* Give the helpers time to clean up their act. */
+  uv_sleep(1000);
+
 out:
   /* Reap running processes except the main process, it's already dead. */
   for (i = 0; i < process_count - 1; i++) {