diff --git a/appveyor.yml b/appveyor.yml
index e5771c24c..8140b1005 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,5 +11,6 @@ install:
 build_script:
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER; pwd"
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER; ls -l"
+  - bash -lc "cd $APPVEYOR_BUILD_FOLDER; pacman -Q"
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER; cat msys2-build.sh"
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER; bash -x msys2-build.sh"