diff --git a/src/cc/marmara.cpp b/src/cc/marmara.cpp
index 763c19ebe..4b154cc8c 100644
--- a/src/cc/marmara.cpp
+++ b/src/cc/marmara.cpp
@@ -247,7 +247,7 @@ int64_t AddMarmaraCoinbases(struct CCcontract_info *cp,CMutableTransaction &mtx,
         {
             if ( vintx.IsCoinBase() != 0 && vintx.vout.size() == 2 && vintx.vout[1].nValue == 0 )
             {
-                if ( DecodeMaramaraCoinbaseOpRet(vintx.vout[1].scriptPubKey,pk,ht,unlockht) == 'C' && unlockht == unlocks && pk == poolpk )
+                if ( DecodeMaramaraCoinbaseOpRet(vintx.vout[1].scriptPubKey,pk,ht,unlockht) == 'C' && unlockht == unlocks && pk == poolpk && ht >= firstheight )
                 {
                     if ( (nValue= vintx.vout[vout].nValue) > 0 && myIsutxo_spentinmempool(txid,vout) == 0 )
                     {