diff --git a/src/pretix/static/pretixpresale/scss/_calendar.scss b/src/pretix/static/pretixpresale/scss/_calendar.scss
index 786b1ae173..aa9abd712b 100644
--- a/src/pretix/static/pretixpresale/scss/_calendar.scss
+++ b/src/pretix/static/pretixpresale/scss/_calendar.scss
@@ -124,7 +124,7 @@
 #monthselform .row > div {
   margin-bottom: 15px;
 }
-@media(min-width: $screen-md-min) {
+@media(min-width: $screen-sm-min) {
    .select-calendar-week-short {
      max-width: 50%;
    }