diff --git a/.appveyor.yml b/.appveyor.yml
index 0a8ce5c5..0f42d96b 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -16,6 +16,6 @@ build: off
 
 test_script:
   - "python -m pip install tox"
-  - "tox"
+  - "tox -- -vv -s"
 
 version: '{build}'