diff --git a/python-django-tastypie.spec b/python-django-tastypie.spec
index ea56042..cd58d7c 100644
--- a/python-django-tastypie.spec
+++ b/python-django-tastypie.spec
@@ -106,7 +106,8 @@ cp -pr docs/_build/html -t $RPM_BUILD_ROOT%{docdir}
 pushd tests
 # handle building on hosts with bad DNS
 find -type f -name '*.py' -print | xargs sed -i 's|localhost|127.0.0.1|'
-export PYTHONPATH=$PWD:$PWD/..${PYTHONPATH:+:$PYTHONPATH}
+PYTHONPATH=$PWD:$PWD/..${PYTHONPATH:+:$PYTHONPATH}
+export PYTHONPATH
 #django-admin test core --settings=settings_core
 django-admin test basic --settings=settings_basic
 django-admin test complex --settings=settings_complex