diff --git a/setup.cfg b/setup.cfg
index 2e9eabf..11d9d93 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -48,7 +48,14 @@ packages =
 
 [test]
 # py.test options when running `python setup.py test`
-addopts = tests
+addopts = 
+  wafo/test
+  wafo/covariance/test
+  wafo/spectrum/test
+  wafo/stats/tests
+  wafo/covariance/test
+  wafo/transform/test
+  wafo/wave_theory/test
 
 [pytest]
 # Options for py.test: