diff --git a/tests/ui/instances_page.py b/tests/ui/instances_page.py
index ee810f6cb..5f633c921 100644
--- a/tests/ui/instances_page.py
+++ b/tests/ui/instances_page.py
@@ -50,9 +50,9 @@ try:
     log_info(f"Trying to {action} BunkerWeb instance ...")
 
     try:
-        assert_button_click(DRIVER, f"//form[starts-with(@id, 'form-instance-')]//button[@value='{action}']")
+        assert_button_click(DRIVER, f"//form[starts-with(@id, 'form-instance-')]//button[@value='{action}']", error=True)
         sleep(5)
-        assert_button_click(DRIVER, f"//form[starts-with(@id, 'form-instance-')]//button[@value='{action}']")
+        assert_button_click(DRIVER, f"//form[starts-with(@id, 'form-instance-')]//button[@value='{action}']", error=True)
         log_exception("Instance was not stopped successfully, exiting ...")
         exit(1)
     except (TimeoutException, WebDriverException):