diff --git a/python-django-babel.spec b/python-django-babel.spec
index 75996c8..64d3c64 100644
--- a/python-django-babel.spec
+++ b/python-django-babel.spec
@@ -101,6 +101,7 @@ of template tags for date and number formatting.
 %endif
 
 # generate html docs
+export PYTHONPATH=.:$PYTHONPATH
 sphinx-build docs html
 # remove the sphinx-build leftovers
 rm -rf html/.{doctrees,buildinfo}