diff --git a/core/chain_makers.go b/core/chain_makers.go
index 54e3337b9..051c522f8 100644
--- a/core/chain_makers.go
+++ b/core/chain_makers.go
@@ -115,7 +115,6 @@ func (b *BlockGen) addTx(bc *BlockChain, vmConfig vm.Config, tx *types.Transacti
 		b.SetCoinbase(common.Address{})
 	}
 	b.statedb.SetTxContext(tx.Hash(), len(b.txs))
-	fmt.Printf("addTx(): Coinbase is %s\n", b.header.Coinbase.String())
 	receipt, err := ApplyTransaction(b.cm.config, bc, &b.header.Coinbase, b.gasPool, b.statedb, b.header, tx, &b.header.GasUsed, vmConfig)
 	if err != nil {
 		panic(err)