diff --git a/setup.cfg b/setup.cfg
index 9fffb4b05eded527ef366e73ec58bf9cec8806c0..176c1f58204c653db6ca622b7fe6d7f549136025 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,6 +39,7 @@ testing =
     flake8      # system tests run flake8
     matplotlib
     numpy
+    build
 
 
 [flake8]