diff --git a/appveyor.yml b/appveyor.yml
index ead70d5ef..96018b1d0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,7 +7,7 @@ configuration:
 
 install:
   - cmd: git clone https://github.com/ogrisel/python-appveyor-demo
-  - ps: if (-not(Test-Path($env:PYTHON))) { & python-appvegor-demo\appveyor\install.ps1 }
+  - ps:  python-appvegor-demo\appveyor\install.ps1
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
   - "python --version"
   - "python -c \"import struct; print(struct.calcsize('P') * 8)\""