diff --git a/appveyor.yml b/appveyor.yml
index 16e65deb49..3da2a9b3dd 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,11 +1,16 @@
 environment:
   matrix:
+  - TARGET: x86_64-pc-windows-gnu
+    MSYS_BITS: 64
+  - TARGET: i686-pc-windows-gnu
+    MSYS_BITS: 32
   - TARGET: x86_64-pc-windows-msvc
   - TARGET: i686-pc-windows-msvc
 install:
   - ps: Start-FileDownload "https://static.rust-lang.org/dist/rust-nightly-${env:TARGET}.exe"
   - rust-nightly-%TARGET%.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
   - set PATH=%PATH%;C:\Program Files (x86)\Rust\bin
+  - if defined MSYS_BITS set PATH=%PATH%;C:\msys64\mingw%MSYS_BITS%\bin
   - set CARGO_TARGET_DIR=%APPVEYOR_BUILD_FOLDER%\target
   - rustc -V
   - cargo -V