--- pytest-benchmark-5.1.0/tox.ini.orig
+++ pytest-benchmark-5.1.0/tox.ini
@@ -29,7 +29,6 @@
     {bootstrap,clean,check,report,docs,codecov,coveralls}: {env:TOXPYTHON:python3}
 setenv =
     COLUMNS=80
-    PYTHONPATH={toxinidir}/tests
     PYTHONUNBUFFERED=yes
     COV_CORE_SOURCE={toxinidir}/src
     COV_CORE_CONFIG={toxinidir}/.coveragerc