diff --git a/matrix-synapse.spec b/matrix-synapse.spec
index d16edde..f4dad3b 100644
--- a/matrix-synapse.spec
+++ b/matrix-synapse.spec
@@ -16,8 +16,6 @@
 #
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
-# build for only one python version
-%undefine have_python3
 %define         github_user matrix-org
 %define         short_name synapse
 Name:           matrix-%{short_name}