diff --git a/uniweb/models.py b/uniweb/models.py
index cafb5aa511e8e2a45684a6a56a5579fb2a98d2d1..fd50c61f6e5379095a72c37bbc312553a5343aef 100644
--- a/uniweb/models.py
+++ b/uniweb/models.py
@@ -355,7 +355,7 @@ CONTENT_STREAM_BLOCKS = [
     ),
     ("articles", ArticlesBlock()),
     ("calendar_agenda", CalendarAgendaBlock()),
-    ("chart", ChartBlock())
+    ("chart", ChartBlock()),
 ]