diff --git a/appveyor.yml b/appveyor.yml
index 396819a66f..6555331516 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,6 +2,12 @@ image: Visual Studio 2017
 # List of preinstalled software in the image:
 # https://www.appveyor.com/docs/windows-images-software/
 
+install:
+- dir
+
+build_script:
+- dir
+
 test_script:
 - set CONDA_INSTALL_LOCN=C:\\Miniconda37-x64
 - call %CONDA_INSTALL_LOCN%\Scripts\activate.bat