diff --git a/evdns.c b/evdns.c
index c8f961ee..9332f7e6 100644
--- a/evdns.c
+++ b/evdns.c
@@ -5383,9 +5383,9 @@ evdns_cache_write(struct evdns_base *dns_base, char *nodename, struct evutil_add
 		log(EVDNS_LOG_DEBUG, "Ejecting old cache for %s", nodename);
 		evdns_cache_free(cache);
 	}
-	cache = mm_malloc(sizeof(struct evdns_cache));
+	cache = mm_calloc(1, sizeof(struct evdns_cache));
 	cache->base = dns_base;
-	cache->name = strdup(nodename);
+	cache->name = mm_strdup(nodename);
 	cache->ai = evutil_dup_addrinfo_(res);
 	SPLAY_INSERT(evdns_tree, &cache->base->cache_root, cache);
 	evtimer_assign(&cache->ev_timeout, dns_base->event_base, evdns_ttl_expired, cache);
@@ -5788,7 +5788,7 @@ evdns_getaddrinfo(struct evdns_base *dns_base,
 	data->user_cb = cb;
 	data->user_data = arg;
 	data->evdns_base = dns_base;
-	data->nodename = strdup(nodename);
+	data->nodename = mm_strdup(nodename);
 
 	want_cname = (hints.ai_flags & EVUTIL_AI_CANONNAME);
 
diff --git a/evutil.c b/evutil.c
index 8b87ed8c..6d782241 100644
--- a/evutil.c
+++ b/evutil.c
@@ -1785,10 +1785,10 @@ evutil_dup_addrinfo_(struct evutil_addrinfo *ai)
 	struct evutil_addrinfo *prev = NULL;
 	for (; ai; ai = ai->ai_next) {
 		int len = sizeof(struct evutil_addrinfo) + ai->ai_addrlen;
-		struct evutil_addrinfo *n = calloc(1, len);
+		struct evutil_addrinfo *n = mm_calloc(1, len);
 		memcpy(n, ai, len);
 		if (ai->ai_canonname) {
-			n->ai_canonname = strdup(ai->ai_canonname);
+			n->ai_canonname = mm_strdup(ai->ai_canonname);
 		}
 		n->ai_addr = (struct sockaddr*)(((char*)n) + sizeof(struct evutil_addrinfo));
 		if (!first) {