diff --git a/src/lib/dhcpsrv/mysql_lease_mgr.cc b/src/lib/dhcpsrv/mysql_lease_mgr.cc
index 40d08b8490..df57b8f1a0 100644
--- a/src/lib/dhcpsrv/mysql_lease_mgr.cc
+++ b/src/lib/dhcpsrv/mysql_lease_mgr.cc
@@ -1933,15 +1933,13 @@ MySqlLeaseMgr::getLeases6(Lease::Type lease_type,
 }
 
 void
-MySqlLeaseMgr::getExpiredLeases6(Lease6Collection& expired_leases,
-                                 const size_t max_leases) const {
+MySqlLeaseMgr::getExpiredLeases6(Lease6Collection&, const size_t) const {
     isc_throw(NotImplemented, "MySqlLeaseMgr::getExpiredLeases6 is currently"
               " not implemented");
 }
 
 void
-MySqlLeaseMgr::getExpiredLeases4(Lease4Collection& expired_leases,
-                                 const size_t max_leases) const {
+MySqlLeaseMgr::getExpiredLeases4(Lease4Collection&, const size_t) const {
     isc_throw(NotImplemented, "MySqlLeaseMgr::getExpiredLeases4 is currently"
               " not implemented");
 }
@@ -2089,13 +2087,13 @@ MySqlLeaseMgr::deleteLease(const isc::asiolink::IOAddress& addr) {
 }
 
 void
-MySqlLeaseMgr::deleteExpiredReclaimedLeases4(const uint32_t secs) {
+MySqlLeaseMgr::deleteExpiredReclaimedLeases4(const uint32_t) {
     isc_throw(NotImplemented, "MySqlLeaseMgr::deleteExpiredReclaimedLeases4"
               " is not implemented");
 }
 
 void
-MySqlLeaseMgr::deleteExpiredReclaimedLeases6(const uint32_t secs) {
+MySqlLeaseMgr::deleteExpiredReclaimedLeases6(const uint32_t) {
     isc_throw(NotImplemented, "MySqlLeaseMgr::deleteExpiredReclaimedLeases6"
               " is not implemented");
 }
diff --git a/src/lib/dhcpsrv/pgsql_lease_mgr.cc b/src/lib/dhcpsrv/pgsql_lease_mgr.cc
index 387683ce1d..1db8ecb026 100644
--- a/src/lib/dhcpsrv/pgsql_lease_mgr.cc
+++ b/src/lib/dhcpsrv/pgsql_lease_mgr.cc
@@ -1383,15 +1383,13 @@ PgSqlLeaseMgr::getLeases6(Lease::Type lease_type, const DUID& duid,
 }
 
 void
-PgSqlLeaseMgr::getExpiredLeases6(Lease6Collection& expired_leases,
-                                 const size_t max_leases) const {
+PgSqlLeaseMgr::getExpiredLeases6(Lease6Collection&, const size_t) const {
     isc_throw(NotImplemented, "PgSqlLeaseMgr::getExpiredLeases6 is currently"
               " not implemented");
 }
 
 void
-PgSqlLeaseMgr::getExpiredLeases4(Lease4Collection& expired_leases,
-                                 const size_t max_leases) const {
+PgSqlLeaseMgr::getExpiredLeases4(Lease4Collection&, const size_t) const {
     isc_throw(NotImplemented, "PgSqlLeaseMgr::getExpiredLeases4 is currently"
               " not implemented");
 }
@@ -1510,13 +1508,13 @@ PgSqlLeaseMgr::deleteLease(const isc::asiolink::IOAddress& addr) {
 }
 
 void
-PgSqlLeaseMgr::deleteExpiredReclaimedLeases4(const uint32_t secs) {
+PgSqlLeaseMgr::deleteExpiredReclaimedLeases4(const uint32_t) {
     isc_throw(NotImplemented, "PgSqlLeaseMgr::deleteExpiredReclaimedLeases4"
               " is not implemented");
 }
 
 void
-PgSqlLeaseMgr::deleteExpiredReclaimedLeases6(const uint32_t secs) {
+PgSqlLeaseMgr::deleteExpiredReclaimedLeases6(const uint32_t) {
     isc_throw(NotImplemented, "PgSqlLeaseMgr::deleteExpiredReclaimedLeases6"
               " is not implemented");
 }