diff --git a/tox.ini b/tox.ini
index 5e372930..cce8e46f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -24,7 +24,7 @@ setenv =
     env36: JEDI_TEST_ENVIRONMENT=36
     env37: JEDI_TEST_ENVIRONMENT=37
 commands =
-    pytest
+    pytest {posargs}
 whitelist_externals = pytest
 [testenv:cov]
 commands =