diff --git a/docxtpl/__init__.py b/docxtpl/__init__.py
index cbeb34f..90e1a6f 100644
--- a/docxtpl/__init__.py
+++ b/docxtpl/__init__.py
@@ -391,7 +391,7 @@ class RichText(object):
                         bold=False,
                         italic=False,
                         underline=False,
-                        strike=False
+                        strike=False,
                         font=None):