--- a/calendar/base/content/today-pane.js
+++ b/calendar/base/content/today-pane.js
@@ -317,17 +317,17 @@ var TodayPane = {
     /**
      * Shows short weekday names in the weekdayNameContainer
      */
     setShortWeekdays: function() {
         let weekdisplaydeck = document.getElementById("weekdayNameContainer");
         let childNodes = weekdisplaydeck.childNodes;
 
         for (let i = 0; i < childNodes.length; i++) {
-            childNodes[i].setAttribute("value", cal.calGetString("dateFormat","day." + (i+1) + ".Mmm"));
+            childNodes[i].setAttribute("value", cal.calGetString("dateFormat", "day." + (i+1) + ".Mmm"));
         }
     },
 
     /**
      * Sets the shown date from a JSDate.
      *
      * @param aNewDate      The date to show.
      */