diff --git a/.appveyor.yml b/.appveyor.yml
index fe9b283..3acdafd 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -8,8 +8,7 @@ environment:
 clone_depth: 10
 
 install:
-  - set "PATH=C:\msys64\usr\bin;C:\msys64\mingw64\bin;C:\Windows\System32;C:\Windows;%PATH%"
-  - set MSYSTEM=MINGW64
+  - set "PATH=C:\msys64\usr\bin;C:\msys64\mingw32\bin;C:\Windows\System32;C:\Windows;%PATH%"
   - bash -lc "curl -O http://repo.msys2.org/msys/x86_64/msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz"
   - bash -lc "curl -O http://repo.msys2.org/msys/x86_64/msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz.sig"
   - bash -lc "pacman-key --verify msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz.sig"