diff --git a/setup.cfg b/setup.cfg
index 1ca09682..7a67daf4 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,6 +39,7 @@ test =
 docs =
     sphinx
     sphinx-astropy
+    git+https://github.com/karllark/dust_attenuation.git
 
 [options.package_data]
 eazy.data =