diff --git a/odoo/tests/common.py b/odoo/tests/common.py
index b87a42519eb..ff6938beb09 100644
--- a/odoo/tests/common.py
+++ b/odoo/tests/common.py
@@ -857,6 +857,9 @@ class HttpCase(TransactionCase):
 
         If neither are done before timeout test fails.
         """
+        # increase timeout if coverage is running
+        if any(f.filename.endswith('/coverage/execfile.py') for f in inspect.stack()  if f.filename):
+            timeout = timeout * 1.5
         self.start_browser(self._logger)
 
         try: