diff --git a/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.dtd b/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.dtd
index 699e489e541..7b04e721a35 100644
--- a/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.dtd
+++ b/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.dtd
@@ -273,7 +273,8 @@
 
 <!ENTITY read.only.general.label         "General">
 <!ENTITY read.only.title.label           "Title:">
-<!ENTITY read.only.date.label            "Date:">
+<!ENTITY read.only.date.start.label      "Start:">
+<!ENTITY read.only.date.end.label        "End:">
 <!ENTITY read.only.repeat.label          "Repeat:">
 <!ENTITY read.only.location.label        "Location:">
 <!ENTITY read.only.category.label        "Category:">
diff --git a/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.properties b/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.properties
index 001c24d0175..b108d3b8f50 100644
--- a/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.properties
+++ b/mozilla/calendar/locales/en-US/chrome/prototypes/sun-calendar-event-dialog.properties
@@ -116,3 +116,5 @@ emailSubjectReply=Re: %1$S
 # Link Location Dialog
 specifyLinkLocation=Please specify the link location
 enterLinkLocation=Enter a web page, or document location.
+
+summaryDueTaskLabel=Due: