diff --git a/src/plugins/webreport/WebCal.py b/src/plugins/webreport/WebCal.py
index f26e15a99..325fe5dee 100644
--- a/src/plugins/webreport/WebCal.py
+++ b/src/plugins/webreport/WebCal.py
@@ -1738,7 +1738,7 @@ def get_day_list(event_date, holiday_list, bday_anniv_list):
         if event == 'Birthday':
 
             txt_str = _(text + ', <em>'
-            + ('%s old' % str(age_str) if nyears else 'birth')
+            + (_('%s old') % str(age_str) if nyears else 'birth')
             + '</em>')
 
         # an anniversary