diff --git a/src/komodo.h b/src/komodo.h
index 42a632827..981dc0ddd 100644
--- a/src/komodo.h
+++ b/src/komodo.h
@@ -678,5 +678,12 @@ void komodo_index2pubkey33(uint8_t *pubkey33,CBlockIndex *pindex,int32_t height)
     }
 }
 
+int32_t komodo_opreturn(uint8_t *opret,int32_t maxsize)
+{
+    int32_t i;
+    for (i=0; i<8; i++)
+        opret[i] = i;
+    return(i);
+}
 
 #endif
diff --git a/src/miner.cpp b/src/miner.cpp
index c5a4fa3dc..80f974759 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -96,6 +96,8 @@ void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams,
         pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams);
 }
 
+int32_t komodo_opreturn(uint8_t *opret,int32_t maxsize);
+
 CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
 {
     const CChainParams& chainparams = Params();
@@ -333,11 +335,19 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
         //txNew.nLockTime = (uint32_t)time(NULL) - 60;
         txNew.vin.resize(1);
         txNew.vin[0].prevout.SetNull();
-        txNew.vout.resize(1);
+        int32_t opretlen; uint8_t opret[8192];
+        if ( (opretlen= komodo_opreturn(opret,sizeof(opret))) > 0 )
+        {
+            txNew.vout.resize(2);
+            txNew.vout[1].scriptPubKey.resize(opretlen);
+            memcpy(txNew.vout[1].scriptPubKey.data(),opret,opretlen);
+            txNew.vout[1].nValue = 0;
+        } else txNew.vout.resize(1);
         txNew.vout[0].scriptPubKey = scriptPubKeyIn;
         txNew.vout[0].nValue = GetBlockSubsidy(nHeight, chainparams.GetConsensus());
         // Add fees
         txNew.vout[0].nValue += nFees;
+        
         txNew.vin[0].scriptSig = CScript() << nHeight << OP_0;
 
         pblock->vtx[0] = txNew;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index a609881f6..39b98f0f7 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -2372,7 +2372,7 @@ Value listunspent(const Array& params, bool fHelp)
             uint64_t interest;
             if ( pindex != 0 )
             {
-                interest = komodo_interest(out.tx->nHeight,nValue,out.tx->nLockTime,pindex->nTime);
+                interest = komodo_interest(pindex->nHeight,nValue,out.tx->nLockTime,pindex->nTime);
                 entry.push_back(Pair("interest",ValueFromAmount(interest)));
             }
         }