diff --git a/WebsitePanel/Database/update_db.sql b/WebsitePanel/Database/update_db.sql
index ad4b79c9..3528e295 100644
--- a/WebsitePanel/Database/update_db.sql
+++ b/WebsitePanel/Database/update_db.sql
@@ -6985,3 +6985,10 @@ WHERE
 RETURN'
 END
 GO
+
+
+IF  NOT EXISTS (SELECT 1 FROM LyncUsers WHERE SipAddress IS NOT NULL)
+BEGIN
+	UPDATE LyncUsers  SET SipAddress=EA.PrimaryEmailAddress FROM ExchangeAccounts AS EA WHERE LyncUsers.SipAddress IS NULL AND LyncUsers.AccountID = EA.AccountID
+END
+GO
\ No newline at end of file