diff --git a/folio.py b/folio.py
index 24c29a9..5b2fd92 100644
--- a/folio.py
+++ b/folio.py
@@ -892,6 +892,7 @@ class Folio(ModelSQL, ModelView):
             'labels': labels,
             'values': values,
             'header_meta': month_name,
+            'min_value': 1,
             'max_value': 100,
         }
         return res