diff --git a/src/datepicker/datepicker.js b/src/datepicker/datepicker.js
index 93b473f068..15198d5d7e 100644
--- a/src/datepicker/datepicker.js
+++ b/src/datepicker/datepicker.js
@@ -260,8 +260,8 @@ angular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootst
         if ( scope.showWeeks ) {
           scope.weekNumbers = [];
           // use date at middle of the row (3) instead of 0 to avoid problems when first day is Sunday
-          var weekNumber = getISO8601WeekNumber( scope.rows[0][3].date ), 
-              numWeeks = scope.rows.length;
+          var weekNumber = getISO8601WeekNumber(scope.rows[0][3].date);
+          var numWeeks = scope.rows.length;
           while( scope.weekNumbers.push(weekNumber++) < numWeeks ) {}
         }
       };