diff --git a/.appveyor.yml b/.appveyor.yml
index 33805a4f7..66db6cb1f 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -22,6 +22,7 @@ install:
   # done from inside the powershell script as it would require to restart
   # the parent CMD process).
   - "SET PATH=%CD%;%PYTHON%;%PYTHON%\\Scripts;%PATH%"
+  - "SET PYTHONPATH=%CD%;%PYTHONPATH%;
 
   # Filesystem root
   # - ps: "ls \"C:/\""