diff --git a/tryton/client.py b/tryton/client.py
index bbf217c3b7..d27e7c38b0 100644
--- a/tryton/client.py
+++ b/tryton/client.py
@@ -33,7 +33,6 @@ def main():
         font-style: italic;
     }
     .window-title, .wizard-title {
-        background-color: white;
         font-size: large;
         font-weight: bold;
     }