diff --git a/test/performance/tox.ini b/test/performance/tox.ini
index e3d8431c..e08a251a 100644
--- a/test/performance/tox.ini
+++ b/test/performance/tox.ini
@@ -37,6 +37,8 @@ commands =
         --maxfail 1 \
         --tb native \
         --log-cli-level DEBUG \
+        --log-format "%(asctime)s %(levelname)s %(message)s" \
+        --log-date-format "%Y-%m-%d %H:%M:%S" \
         --disable-warnings \
         {posargs} \
         {toxinidir}/tests