diff --git a/tox.ini b/tox.ini
index a04f91ae5..0b1be0d33 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,7 +40,7 @@ setenv =
     lsof: _PYTEST_TOX_POSARGS_LSOF=--lsof
 
     pexpect: _PYTEST_TOX_PLATFORM=linux|darwin
-    pexpect: _PYTEST_TOX_POSARGS_PEXPECT=testing/test_pdb.py testing/test_terminal.py testing/test_unittest.py
+    pexpect: _PYTEST_TOX_POSARGS_PEXPECT=-m uses_pexpect
 
     twisted: _PYTEST_TOX_POSARGS_TWISTED=testing/test_unittest.py