diff --git a/setup.cfg b/setup.cfg
index 4def869..edd2214 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -48,6 +48,11 @@ packages =
 [test]
 # py.test options when running `python setup.py test`
 addopts =
+  wafo
+  wafo/spectrum
+  wafo/transform
+  wafo/covariance
+  wafo/wave_theory
   wafo/tests
   wafo/covariance/tests
   wafo/spectrum/tests