diff --git a/vizro-core/src/vizro/models/_dashboard.py b/vizro-core/src/vizro/models/_dashboard.py
index ff37bdfe2..b0da25fb3 100644
--- a/vizro-core/src/vizro/models/_dashboard.py
+++ b/vizro-core/src/vizro/models/_dashboard.py
@@ -164,7 +164,7 @@ def build(self):
                 html.Div(
                     id="pink-div",
                     children="This is a pink div",
-                    style={"backgroundColor": "pink", "padding": "10px", "margin": "10px"}
+                    style={"backgroundColor": "pink", "padding": "10px", "margin": "10px"},
                 ),
                 dcc.Store(
                     id="vizro_themes",