diff --git a/src/main.cpp b/src/main.cpp
index 16cb93d9d..5a5c7df9b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -700,7 +700,10 @@ bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime)
     if ((int64_t)tx.nLockTime < ((int64_t)tx.nLockTime < LOCKTIME_THRESHOLD ? (int64_t)nBlockHeight : nBlockTime))
         return true;
     if ( (int64_t)tx.nLockTime >= LOCKTIME_THRESHOLD && (int64_t)tx.nLockTime < nBlockTime-3600 )
+    {
+        fprintf(stderr,"IsFinalTx reject locktime %u vs nBlockTime %u\n",tx.nLockTime,(uint32_t)nBlockTime);
         return(false); // need to prevent pastdating tx
+    }
     BOOST_FOREACH(const CTxIn& txin, tx.vin)
         if (!txin.IsFinal())
             return false;