diff --git a/ansibleplaybookgrapher/renderer/mermaid.py b/ansibleplaybookgrapher/renderer/mermaid.py
index da225ada..c24a33de 100644
--- a/ansibleplaybookgrapher/renderer/mermaid.py
+++ b/ansibleplaybookgrapher/renderer/mermaid.py
@@ -98,7 +98,7 @@ def render(
 
             mermaid_code += playbook_builder.build_playbook(
                 hide_empty_plays=hide_empty_plays,
-                hide_plays_without_roles=hide_plays_without_roles
+                hide_plays_without_roles=hide_plays_without_roles,
             )
             link_order = playbook_builder.link_order
             roles_built.update(playbook_builder.roles_built)