diff --git a/src/pretix/static/pretixpresale/scss/_calendar.scss b/src/pretix/static/pretixpresale/scss/_calendar.scss
index 10a9465f23..e1590df867 100644
--- a/src/pretix/static/pretixpresale/scss/_calendar.scss
+++ b/src/pretix/static/pretixpresale/scss/_calendar.scss
@@ -14,6 +14,7 @@
     padding: 3px 5px;
     margin-top: 3px;
     font-size: 12px;
+    overflow-wrap: anywhere;
 
     &.continued {
       background: #888;