diff --git a/src/pretix/presale/style.py b/src/pretix/presale/style.py
index 9c0d27ce89..6f8945a33e 100644
--- a/src/pretix/presale/style.py
+++ b/src/pretix/presale/style.py
@@ -198,7 +198,7 @@ def get_theme_vars_css(obj, widget=False):
             absolute=False,
         ))
         sassrules.append(
-            '$in-font-family-sans-serif: "{}", "Open Sans", "OpenSans", "Helvetica Neue", Helvetica, Arial, sans-serif'.format(
+            '$in-font-family-sans-serif: "{}", "Open Sans", "OpenSans", "Helvetica Neue", Helvetica, Arial, sans-serif;'.format(
                 font
             )
         )