diff --git a/tox.ini b/tox.ini
index 63f241a9d..90a18a163 100644
--- a/tox.ini
+++ b/tox.ini
@@ -90,7 +90,7 @@ commands =
         ; the sidebar is making the build time two times longer for the cpython docs, 
         ; so we just skip it.
         --no-sidebar \ 
-        {toxworkdir}/cpython/Lib
+        {toxworkdir}/cpython/Lib | tee {toxworkdir}/cpython-summary-output/run.log
     pytest -vv docs/tests/test_standard_library_docs.py
 
 [testenv:numpy-apidocs]