diff --git a/venv.ps1 b/venv.ps1
index 635a1c59c..71eb69c60 100644
--- a/venv.ps1
+++ b/venv.ps1
@@ -10,11 +10,10 @@ $ErrorActionPreference = "Stop"
 if(!(Test-Path -Path ".build"))
 {
     virtualenv .build --system-site-packages --python $python
-}
-
-if($compiler)
-{
-    "[build]`r`ncompiler=$compiler" | Out-File .\.build\Lib\distutils\distutils.cfg
+    if($compiler)
+    {
+        "[build]`r`ncompiler=$compiler" | Out-File -Encoding ascii .\.build\Lib\distutils\distutils.cfg
+    }
 }
 
 .build\Scripts\activate.ps1