diff --git a/tox.ini b/tox.ini
index 0a758cd..eb004ee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -55,7 +55,6 @@ commands = sphinx-build -W -b html -d doc/build/doctrees doc/source doc/build/ht
 
 [testenv:pdf-docs]
 deps = -r{toxinidir}/doc/requirements.txt
-envdir = {toxworkdir}/docs
 allowlist_externals =
   make
 commands =