diff --git a/appveyor.yml b/appveyor.yml
index 8027aee166..edb679d223 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,7 +7,7 @@ build_script:
 - call ci\build.bat
 cache:
 - C:\msys64\var\cache\pacman\pkg -> ci\build.bat
-- .deps -> third-party/**
+- .deps -> third-party\**
 artifacts:
 - path: build/Neovim.zip
 - path: build/bin/nvim.exe