diff --git a/appveyor.yml b/appveyor.yml
index 42ab8a83e4..aabcef8e85 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,6 +13,7 @@ environment:
     STACK_ROOT: "c:\\sr"
 
 test_script:
+- stack setup > nul
 # The ugly echo "" hack is to avoid complaints about 0 being an invalid file
 # descriptor
-- echo "" | stack --arch i386 --no-terminal --install-ghc test
+- echo "" | stack --no-terminal test