diff --git a/lib/dns/dst_api.c b/lib/dns/dst_api.c
index 9426f9c260..9962db728b 100644
--- a/lib/dns/dst_api.c
+++ b/lib/dns/dst_api.c
@@ -191,6 +191,7 @@ static isc_mem_t *dst__mctx = NULL;
 void
 dst__lib_initialize(void) {
 	isc_mem_create(&dst__mctx);
+	isc_mem_setname(dst__mctx, "dst");
 
 	dst__hmacmd5_init(&dst_t_func[DST_ALG_HMACMD5]);
 	dst__hmacsha1_init(&dst_t_func[DST_ALG_HMACSHA1]);
diff --git a/lib/isc/managers.c b/lib/isc/managers.c
index b4912e8ac0..1695d5f6f9 100644
--- a/lib/isc/managers.c
+++ b/lib/isc/managers.c
@@ -22,6 +22,7 @@ isc_managers_create(isc_mem_t **mctxp, uint32_t workers,
 	REQUIRE(mctxp != NULL && *mctxp == NULL);
 	isc_mem_create(mctxp);
 	INSIST(*mctxp != NULL);
+	isc_mem_setname(*mctxp, "managers");
 
 	REQUIRE(loopmgrp != NULL && *loopmgrp == NULL);
 	isc_loopmgr_create(*mctxp, workers, loopmgrp);