diff --git a/setup.py b/setup.py
index 776780a828..3797d37486 100644
--- a/setup.py
+++ b/setup.py
@@ -49,7 +49,6 @@ setup(name='trytond_stock_supply_day',
         'Natural Language :: German',
         'Natural Language :: Spanish',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 2.5',
         'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
         'Topic :: Office/Business',