diff --git a/src/base/net/stratum/SelfSelectClient.cpp b/src/base/net/stratum/SelfSelectClient.cpp
index a902e252f..7ab1abd0f 100644
--- a/src/base/net/stratum/SelfSelectClient.cpp
+++ b/src/base/net/stratum/SelfSelectClient.cpp
@@ -72,7 +72,14 @@ int64_t xmrig::SelfSelectClient::submit(const JobResult &result)
         submitOriginDaemon(result);
     }
 
-    return m_client->submit(result);
+    uint64_t submit_result = m_client->submit(result);
+
+    if (m_submitToOrigin) {
+        // Ensure that the latest block template is available after block submission
+        getBlockTemplate();
+    }
+
+    return submit_result;
 }
 
 
@@ -285,9 +292,6 @@ void xmrig::SelfSelectClient::submitOriginDaemon(const JobResult& result)
     LOG_INFO("%s " GREEN_BOLD("submitted to origin daemon") " (%" PRId64 "/%" PRId64 ") " 
         " diff " WHITE("%" PRIu64) " vs. " WHITE("%" PRIu64),
         Tags::origin(), m_originSubmitted, m_originNotSubmitted, m_blockDiff, result.actualDiff(), result.diff);
-
-    // Ensure that the latest block template is available after block submission
-    getBlockTemplate();
 }
 
 void xmrig::SelfSelectClient::onHttpData(const HttpData &data)
diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp
index 4f6d27333..4cdbed224 100644
--- a/src/base/tools/cryptonote/BlockTemplate.cpp
+++ b/src/base/tools/cryptonote/BlockTemplate.cpp
@@ -249,10 +249,11 @@ bool xmrig::BlockTemplate::parse(bool hashes)
 
         switch (extra_tag) {
         case 0x01: // TX_EXTRA_TAG_PUBKEY
+        {
             setOffset(TX_PUBKEY_OFFSET, offset(TX_EXTRA_OFFSET) + ar_extra.index());
             ar_extra.skip(kKeySize);
             break;
-
+        }
         case 0x02: // TX_EXTRA_NONCE
             {
                 uint64_t size = 0;
@@ -261,7 +262,14 @@ bool xmrig::BlockTemplate::parse(bool hashes)
                 ar_extra(m_txExtraNonce, size);
             }
             break;
-
+        case 0x03: // TX_EXTRA_MERGE_MINING_TAG
+        {
+            uint64_t size = 0;
+            ar_extra(size);
+            setOffset(TX_EXTRA_MERGE_MINING_TAG_OFFSET, offset(TX_EXTRA_OFFSET) + ar_extra.index());
+            ar_extra(m_txMergeMiningTag, size+kKeySize);
+            break;
+        }
         default:
             return false; // TODO(SChernykh): handle other tags
         }
diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h
index 11d9e33d1..d6f2de3f4 100644
--- a/src/base/tools/cryptonote/BlockTemplate.h
+++ b/src/base/tools/cryptonote/BlockTemplate.h
@@ -54,6 +54,7 @@ public:
         TX_EXTRA_OFFSET,
         TX_PUBKEY_OFFSET,
         TX_EXTRA_NONCE_OFFSET,
+        TX_EXTRA_MERGE_MINING_TAG_OFFSET,
         OFFSET_COUNT
     };
 
@@ -86,6 +87,7 @@ public:
     inline uint64_t outputType() const                      { return m_outputType; }
     inline const Span &ephPublicKey() const                 { return m_ephPublicKey; }
     inline const Span &txExtraNonce() const                 { return m_txExtraNonce; }
+    inline const Span &txMergeMiningTag() const             { return m_txMergeMiningTag; }
 
     // Transaction hashes
     inline uint64_t numHashes() const                       { return m_numHashes; }
@@ -140,7 +142,7 @@ private:
     Span m_ephPublicKey;
     uint64_t m_extraSize    = 0;
     Span m_txExtraNonce;
-
+    Span m_txMergeMiningTag = 0;
     uint64_t m_numHashes    = 0;
     Buffer m_hashes;
     Buffer m_minerTxMerkleTreeBranch;