diff --git a/mozilla/mail/locales/en-US/chrome/messenger/importMsgs.properties b/mozilla/mail/locales/en-US/chrome/messenger/importMsgs.properties
index d02a5fd1097..21fad32e0af 100644
--- a/mozilla/mail/locales/en-US/chrome/messenger/importMsgs.properties
+++ b/mozilla/mail/locales/en-US/chrome/messenger/importMsgs.properties
@@ -300,6 +300,7 @@ ImportSettingsSuccess=Settings were imported from %S
 #Error string for mail import
 ImportMailBadModule=Unable to load mail import module
 ImportMailNotFound=Unable to find mail to import.  Check to make sure the mail application is correctly installed on this machine.
+ImportEmptyAddressBook=Can't import empty address book %S.
 # LOCALIZATION NOTE : Do not translate the word "%S" below.
 ImportMailFailed=An error occurred importing mail from %S
 # LOCALIZATION NOTE : Do not translate the word "%S" below.