diff --git a/appveyor.yml b/appveyor.yml
index e7d96d2..51e4608 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,7 +4,7 @@ install:
   - if NOT "%RUST%" == "nightly" set RUST_VERSION=%RUST%
   - SET RUST_URL=https://static.rust-lang.org/dist/rust-%RUST_VERSION%-%ARCH%-pc-windows-gnu.exe
   - SET PATH=C:\Rust\bin;C:\msys64\mingw%BITS%\bin;%PATH%;C:\msys64\usr\bin
-  - ps: Start-FileDownload $Env:RUST_URL -FileName rust-dist.exe
+  - ps: Start-FileDownload $env:RUST_URL -FileName rust-dist.exe
   - rust-dist.exe /VERYSILENT /NORESTART /COMPONENTS="Rustc,Gcc,Cargo,Std" /DIR="C:\Rust"
   - rustc -V
   - cargo -V