diff --git a/tox.ini b/tox.ini
index 907516f..1cf0c94 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,6 @@
 basepython = python3
 usedevelop = True
 setenv =
-   VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning
    OS_STDOUT_CAPTURE=1
    OS_STDERR_CAPTURE=1