diff --git a/src/main.cpp b/src/main.cpp
index cf46b9ec9..f5c8280d3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1130,13 +1130,18 @@ bool CheckTransactionWithoutProofVerification(const CTransaction& tx, CValidatio
     int32_t iscoinbase = tx.IsCoinBase();
     if ( ASSETCHAINS_TXPOW != 0 )
     {
+        // genesis coinbase 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
         uint256 txid = tx.GetHash();
         if ( ((ASSETCHAINS_TXPOW & 2) != 0 && iscoinbase != 0) || ((ASSETCHAINS_TXPOW & 1) != 0 && iscoinbase == 0) )
         {
             if ( ((uint8_t *)&txid)[0] != 0 || ((uint8_t *)&txid)[31] != 0 )
             {
-                fprintf(stderr,"private chain iscoinbase.%d invalid txpow.%d txid.%s\n",iscoinbase,ASSETCHAINS_TXPOW,txid.GetHex().c_str());
-                return state.DoS(100, error("CheckTransaction(): this is a txpow chain, must have 0x00 ends"),REJECT_INVALID, "bad-txns-actxpow-chain");
+                uint256 genesistxid = ParseHex("4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b");
+                if ( txid != genesistxid )
+                {
+                    fprintf(stderr,"private chain iscoinbase.%d invalid txpow.%d txid.%s\n",iscoinbase,ASSETCHAINS_TXPOW,txid.GetHex().c_str());
+                    return state.DoS(100, error("CheckTransaction(): this is a txpow chain, must have 0x00 ends"),REJECT_INVALID, "bad-txns-actxpow-chain");
+                }
             }
         }
     }