diff --git a/src/cryptonote_config.h b/src/cryptonote_config.h
index 0b241f7..5b531b1 100644
--- a/src/cryptonote_config.h
+++ b/src/cryptonote_config.h
@@ -3,13 +3,14 @@
 #define CURRENT_TRANSACTION_VERSION 1
 
 enum BLOB_TYPE {
-  BLOB_TYPE_CRYPTONOTE        = 0,
-  BLOB_TYPE_FORKNOTE1         = 1,
-  BLOB_TYPE_FORKNOTE2         = 2,
-  BLOB_TYPE_CRYPTONOTE2       = 3, // Masari
-  BLOB_TYPE_CRYPTONOTE_RYO    = 4, // Ryo
-  BLOB_TYPE_CRYPTONOTE_LOKI   = 5, // Loki
-  BLOB_TYPE_CRYPTONOTE3       = 6, // Masari
-  BLOB_TYPE_AEON              = 7, // Aeon
-  BLOB_TYPE_CRYPTONOTE_CUCKOO = 8, // MoneroV / Swap
+  BLOB_TYPE_CRYPTONOTE         = 0,
+  BLOB_TYPE_FORKNOTE1          = 1,
+  BLOB_TYPE_FORKNOTE2          = 2,
+  BLOB_TYPE_CRYPTONOTE2        = 3, // Masari
+  BLOB_TYPE_CRYPTONOTE_RYO     = 4, // Ryo
+  BLOB_TYPE_CRYPTONOTE_LOKI    = 5, // Loki
+  BLOB_TYPE_CRYPTONOTE3        = 6, // Masari
+  BLOB_TYPE_AEON               = 7, // Aeon
+  BLOB_TYPE_CRYPTONOTE_CUCKOO8 = 8, // MoneroV / Swap
+  BLOB_TYPE_CRYPTONOTE_CUCKOO  = 9, // XTNC
 };
diff --git a/src/cryptonote_core/cryptonote_basic.h b/src/cryptonote_core/cryptonote_basic.h
index d8ff450..cd2784b 100644
--- a/src/cryptonote_core/cryptonote_basic.h
+++ b/src/cryptonote_core/cryptonote_basic.h
@@ -438,7 +438,7 @@ namespace cryptonote
       VARINT_FIELD(minor_version)
       if (blob_type != BLOB_TYPE_FORKNOTE2) VARINT_FIELD(timestamp)
       FIELD(prev_id)
-      if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) FIELD(nonce8)
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO8) FIELD(nonce8)
       if (blob_type != BLOB_TYPE_FORKNOTE2) {
         if (blob_type == BLOB_TYPE_AEON) {
           FIELD(nonce)
@@ -449,7 +449,7 @@ namespace cryptonote
           if (!typename Archive<W>::is_saving()) nonce = nonce32;
         }
       }
-      if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) FIELD(cycle)
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO || blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO8) FIELD(cycle)
     END_SERIALIZE()
   };
 
diff --git a/src/cryptonote_core/cryptonote_format_utils.cpp b/src/cryptonote_core/cryptonote_format_utils.cpp
index 3f650ab..66c04a4 100644
--- a/src/cryptonote_core/cryptonote_format_utils.cpp
+++ b/src/cryptonote_core/cryptonote_format_utils.cpp
@@ -429,7 +429,7 @@ namespace cryptonote
   //---------------------------------------------------------------
   bool get_block_hashing_blob(const block& b, blobdata& blob)
   {
-    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) {
+    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO || b.blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO8) {
       blob = t_serializable_object_to_blob(b.major_version);
       blob.append(reinterpret_cast<const char*>(&b.minor_version), sizeof(b.minor_version));
       blob.append(reinterpret_cast<const char*>(&b.timestamp), sizeof(b.timestamp));
@@ -444,7 +444,7 @@ namespace cryptonote
     if (b.blob_type == BLOB_TYPE_CRYPTONOTE3) {
       blob.append(reinterpret_cast<const char*>(&b.uncle), sizeof(b.uncle));
     }
-    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) {
+    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO8) {
       blob.append(reinterpret_cast<const char*>(&b.nonce8), sizeof(b.nonce8));
     }
     return true;
diff --git a/src/main.cc b/src/main.cc
index 3a53a7d..cbe978d 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -216,7 +216,7 @@ NAN_METHOD(construct_block_blob) { // (parentBlockTemplateBuffer, nonceBuffer, c
         if (!mergeBlocks(parent_block, b, std::vector<crypto::hash>())) return THROW_ERROR_EXCEPTION("Failed to postprocess mining block");
     }
 
-    if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) {
+    if (blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO || blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO8) {
         if (info.Length() != 4) return THROW_ERROR_EXCEPTION("You must provide 4 arguments.");
         Local<Array> cycle = Local<Array>::Cast(info[3]);
         for (int i = 0; i < 32; i++ ) b.cycle.data[i] = cycle->Get(i)->NumberValue();