diff --git a/appveyor.yml b/appveyor.yml
index cb69fcd6e..bffeb46fb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -19,4 +19,4 @@ test_script:
 # Allow all failures for now: the tests don't yet pass!
 matrix:
     allow_failures:
-        - platform: x86
+        - TOXENV: py27