diff --git a/addons/sale_stock/tests/test_create_perf.py b/addons/sale_stock/tests/test_create_perf.py
index fc77214da3d..1fb2d43e25d 100644
--- a/addons/sale_stock/tests/test_create_perf.py
+++ b/addons/sale_stock/tests/test_create_perf.py
@@ -101,7 +101,9 @@ class TestPERF(common.TransactionCase):
     @users('admin')
     @warmup
     def test_complex_sales_orders_batch_creation_perf(self):
-        self._test_complex_sales_orders_batch_creation_perf(1100)
+        # NOTE: sometimes 1101 on runbot, do not change without verifying in multi-builds
+        # (Seems to be a time-based problem, everytime happening around 10PM)
+        self._test_complex_sales_orders_batch_creation_perf(1101)
 
     @users('admin')
     @warmup