diff --git a/appveyor.yml b/appveyor.yml
index 81453820b..7fbc091fa 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -90,4 +90,4 @@ test_script:
     IF %RUN_TESTS%==yes ( ctest -C %CMAKE_CONFIG% --output-on-failure )
 
 cache:
-  - c:\tools\vcpkg\installed\
+  - build/vcpkg_installed