diff --git a/appveyor.yml b/appveyor.yml
index 166ee893..96a964bc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -51,4 +51,4 @@ install:
   - "pipenv install --dev"
 
 test_script:
-  - "pipenv run pytest test_windows\*"
+  - "pipenv run pytest test_windows\\*"