diff --git a/tox.ini b/tox.ini
index 0008b14..36d28a5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,12 +22,13 @@ deps = {[base]testdeps}
 commands = pytest -vv tests/unit
 
 [testenv:functional]
+passenv =
+    PATH
 allowlist_externals =
     echo
     parquet2hdf5
 commands =
     echo $PATH
-    echo $PWD
     parquet2hdf5 --version
 # commands = pytest -vv tests/functional