diff --git a/src/assets/js/default.js b/src/assets/js/default.js
index a7e6f94b..631f8f82 100644
--- a/src/assets/js/default.js
+++ b/src/assets/js/default.js
@@ -182,6 +182,7 @@ $(function() {
         now         : text.calendar_now,
         am          : text.calendar_am,
         pm          : text.calendar_pm,
+        weekNo      : text.calendar_week_no,
     };
 
     /**
diff --git a/src/classes/page.php b/src/classes/page.php
index 6b48a18d..670bd403 100644
--- a/src/classes/page.php
+++ b/src/classes/page.php
@@ -336,10 +336,11 @@ class Page
                     form_prompt_exactCount           : '<?= __('{name} must have exactly {ruleValue} choices') ?>',
                     form_prompt_maxCount             : '<?= __('{name} must have {ruleValue} or less choices') ?>',
 
-                    calendar_today : '<?= _x('Today', 'Calendar') ?>',
-                    calendar_now   : '<?= _x('Now', 'Calendar') ?>',
-                    calendar_am    : '<?= _x('AM', 'Calendar') ?>',
-                    calendar_pm    : '<?= _x('PM', 'Calendar') ?>',
+                    calendar_today   : '<?= _x('Today', 'Calendar') ?>',
+                    calendar_now     : '<?= _x('Now', 'Calendar') ?>',
+                    calendar_am      : '<?= _x('AM', 'Calendar') ?>',
+                    calendar_pm      : '<?= _x('PM', 'Calendar') ?>',
+                    calendar_week_no : '<?= _x('Week', 'Calendar') ?>',
                 };
             </script>
             <?php