diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 0a40e59e9..d06cc763d 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -127,7 +127,7 @@ public:
         CTransaction txNew;
         txNew.vin.resize(1);
         txNew.vout.resize(1);
-        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+        txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
         txNew.vout[0].nValue = 88 * COIN;
         txNew.vout[0].scriptPubKey = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
         genesis.vtx.push_back(txNew);
diff --git a/src/miner.cpp b/src/miner.cpp
index 14835e4aa..4cdc78347 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -359,7 +359,7 @@ void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int&
     }
     ++nExtraNonce;
     unsigned int nHeight = pindexPrev->nHeight+1; // Height first in coinbase required for block.version=2
-    pblock->vtx[0].vin[0].scriptSig = (CScript() << nHeight << CBigNum(nExtraNonce)) + COINBASE_FLAGS;
+    pblock->vtx[0].vin[0].scriptSig = (CScript() << nHeight << CScriptNum(nExtraNonce)) + COINBASE_FLAGS;
     assert(pblock->vtx[0].vin[0].scriptSig.size() <= 100);
 
     pblock->hashMerkleRoot = pblock->BuildMerkleTree();