diff --git a/appveyor.yml b/appveyor.yml
index 8e3866a34..49def79cb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,6 +7,7 @@ install:
   - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
   - rustup-init -yv --default-host %target% --default-toolchain none
   - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+  - rm -rf target\debug
   - rustc -vV
   - cargo -vV
   - cargo update