diff --git a/tox.ini b/tox.ini
index b2badcf67c7b0139feb5108eef5f7533e61ff528..1a7d2589aafcfcdde650a835c6742ac76ef74c0f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,7 @@ skipsdist = True
 whitelist_externals = poetry
     pytest
 skip_install = true
-commands = pytest
+commands = pytest --pylama biscuit/core/
 
 [pylama]
 linters = pycodestyle,pydocstyle,pyflakes,radon