diff --git a/include/osmocom/msc/db.h b/include/osmocom/msc/db.h
index 13c5ed3..2105d38 100644
--- a/include/osmocom/msc/db.h
+++ b/include/osmocom/msc/db.h
@@ -50,6 +50,7 @@
 int db_sms_inc_deliver_attempts(struct gsm_sms *sms);
 int db_sms_delete_by_msisdn(const char *msisdn);
 int db_sms_delete_sent_message_by_id(unsigned long long sms_id);
+int db_sms_delete_expired_message_by_id(unsigned long long sms_id);
 
 /* Statistics counter storage */
 struct osmo_counter;