diff --git a/python-wtforms.spec b/python-wtforms.spec
index 42396ac..6f1ed5f 100644
--- a/python-wtforms.spec
+++ b/python-wtforms.spec
@@ -28,8 +28,11 @@ This allows you to maintain separation of code and presentation,
 and keep those messy parameters out of your python code.
 
 
+%pyproject_extras_subpkg -n python3-wtforms email
+
+
 %generate_buildrequires
-%pyproject_buildrequires -r
+%pyproject_buildrequires -rx email
 
 
 %prep