diff --git a/appveyor.yml b/appveyor.yml
index d7406b4..992c7b0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -36,9 +36,9 @@ install:
       Set-PSDebug -Trace 1
       if ($Env:PYTHON_VERSION.StartsWith("3.8")) {
         if ($Env:PYTHON_ARCH -eq "64") {
-          iex "choco install python3 --version=3.8 --no-progress --params /InstallDir:$Env:PYTHON_HOME"
+          iex "choco install python3 --version=3.8 --no-progress --params /InstallDir:$Env:PYTHON"
         } else {
-          iex "choco install python3 --version=3.8 --no-progress --params /InstallDir:$Env:PYTHON_HOME --x86"
+          iex "choco install python3 --version=3.8 --no-progress --params /InstallDir:$Env:PYTHON --x86"
         }
       }
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"