diff --git a/appveyor.yml b/appveyor.yml
index bb8c43c4c..e64f240ed 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -46,6 +46,8 @@ install:
 
 build_script:
   - git rev-parse HEAD
+  - '%BASH% -lc "pwd"'
+  - '%BASH% -lc "cat Makefile"'
   - '%BASH% -lc "make --version"'
   - '%BASH% -lc "make deps"'