diff --git a/kamailio/dbtext/presentity b/kamailio/dbtext/presentity
index 62d1646..33b537f 100644
--- a/kamailio/dbtext/presentity
+++ b/kamailio/dbtext/presentity
@@ -1 +1 @@
-id(int,auto) username(string) domain(string) event(string) etag(string) expires(int) received_time(int) body(blob) sender(string)
+id(int,auto) username(string) domain(string) event(string) etag(string) expires(int) received_time(int) body(blob) sender(string,null)