diff --git a/src/LocalHost.cpp b/src/LocalHost.cpp
index 117526e76d92..de096279e36a 100644
--- a/src/LocalHost.cpp
+++ b/src/LocalHost.cpp
@@ -224,6 +224,8 @@ void LocalHost::addInactiveData() {
 #endif
 
   ndpi_init_serializer(&host_json, ndpi_serialization_format_json);
+
+  ndpi_serialize_string_string(&host_json, "type", "host");
   ndpi_serialize_string_string(&host_json, "ip", ip.print(buf, sizeof(buf)));
 
   ndpi_serialize_string_uint64(&host_json, "first_seen", get_first_seen());
@@ -731,7 +733,7 @@ void LocalHost::lua_get_fingerprints(lua_State *vm) {
 #ifdef NTOPNG_PRO
 void LocalHost::dumpAssetInfo() {
   char buf[64], mac_buf[32], *json_str = NULL,
-                             *ip = printMask(buf, sizeof(buf)), *mac_ptr;
+    *ip = printMask(buf, sizeof(buf)), *mac_ptr;
   ndpi_serializer device_json;
   u_int32_t json_str_len = 0;
 
@@ -768,6 +770,7 @@ void LocalHost::dumpAssetInfo() {
 
   if ((json_str != NULL) && (json_str_len > 0)) {
     char key[64];
+
     snprintf(key, sizeof(key), ASSET_LIST_INSERTION_KEY, iface->get_id());
     ntop->getRedis()->rpush(key, json_str, 1024);
   }
diff --git a/src/Mac.cpp b/src/Mac.cpp
index a75c97eed759..8588ec94a81b 100644
--- a/src/Mac.cpp
+++ b/src/Mac.cpp
@@ -92,11 +92,32 @@ Mac::~Mac() {
   if ((!broadcast_mac) && (!special_mac)) dumpToRedis();
 
   if (!special_mac && ntop->getRedis() && ntop->getPrefs()->is_pro_edition()) {
-    char mac_addr[64], mac_disconnection_key[128];
+    char mac_addr[64], mac_disconnection_key[128], *mac, *json_str;
+    ndpi_serializer device_json;
+    u_int32_t json_str_len = 0;
+    char redis_key[64];
+
+    mac = print(mac_addr, sizeof(mac_addr));
+
+    ndpi_init_serializer(&device_json, ndpi_serialization_format_json);
+    ndpi_serialize_string_string(&device_json, "type", "mac");
+    ndpi_serialize_string_string(&device_json, "mac", mac);
+    ndpi_serialize_string_uint32(&device_json, "first_seen", first_seen);
+    ndpi_serialize_string_uint32(&device_json, "last_seen", last_seen);
+
+    json_str = ndpi_serializer_get_buffer(&device_json, &json_str_len);
+    if ((json_str != NULL) && (json_str_len > 0)) {
+      snprintf(redis_key, sizeof(redis_key), OFFLINE_LOCAL_HOSTS_MACS_QUEUE_NAME, iface->get_id());
+      ntop->getRedis()->lpush(redis_key, json_str, CONST_MAX_INACTIVE_HOSTS_MAC_QUEUE_LEN);
+    }
+
+    ndpi_term_serializer(&device_json);
+
+    /* Will be removed */
     snprintf(mac_disconnection_key, sizeof(mac_disconnection_key),
-             (char *)MACS_DISCONNECTION, iface->get_id());
-    ntop->getRedis()->lpush(mac_disconnection_key,
-                            print(mac_addr, sizeof(mac_addr)), 0 /* No Trim */);
+	     (char *)MACS_DISCONNECTION, iface->get_id());
+
+    ntop->getRedis()->lpush(mac_disconnection_key, print(mac_addr, sizeof(mac_addr)), 0 /* No Trim */);
   }
 
   if (model) free(model);
@@ -544,7 +565,7 @@ bool Mac::is_hash_entry_state_idle_transition_ready() {
           ? "true"
           : "false",
       time(NULL), last_seen, ntop->getPrefs()->macAddressCacheDuration());
-*/ 
+*/
   return ((getUses() == 0) && is_active_entry_now_idle(
                                   ntop->getPrefs()->macAddressCacheDuration()));
 }