diff --git a/public/locales/sk/modules/calendar.json b/public/locales/sk/modules/calendar.json
index ec43de558..945c05b1b 100644
--- a/public/locales/sk/modules/calendar.json
+++ b/public/locales/sk/modules/calendar.json
@@ -15,6 +15,9 @@
       },
       "hideWeekDays": {
         "label": "Skryť dni v týždni"
+      },
+      "fontSize": {
+        "label": ""
       }
     }
   }