diff --git a/python-zope-testing.spec b/python-zope-testing.spec
index b39280a..43fe95f 100644
--- a/python-zope-testing.spec
+++ b/python-zope-testing.spec
@@ -10,6 +10,10 @@ Source0:        http://pypi.python.org/packages/source/z/zope.testing/zope.testi
 BuildArch:      noarch
 BuildRequires:  python-devel
 BuildRequires:  python-setuptools
+# for testing
+BuildRequires:  python-zope-exceptions
+BuildRequires:  python-zope-interface
+
 Requires:       python-zope-exceptions
 Requires:       python-zope-interface