diff --git a/openbsc/src/db.c b/openbsc/src/db.c
index 10c1d6d..9409ba5 100644
--- a/openbsc/src/db.c
+++ b/openbsc/src/db.c
@@ -1014,7 +1014,7 @@
 }
 
 /* retrieve the next unsent SMS with ID >= min_id */
-struct gsm_sms *db_sms_get_unsent(struct gsm_network *net, int min_id)
+struct gsm_sms *db_sms_get_unsent(struct gsm_network *net, unsigned long long min_id)
 {
 	dbi_result result;
 	struct gsm_sms *sms;
@@ -1041,7 +1041,7 @@
 	return sms;
 }
 
-struct gsm_sms *db_sms_get_unsent_by_subscr(struct gsm_network *net, int min_subscr_id)
+struct gsm_sms *db_sms_get_unsent_by_subscr(struct gsm_network *net, unsigned long long min_subscr_id)
 {
 	dbi_result result;
 	struct gsm_sms *sms;