diff --git a/src/Ledger.cpp b/src/Ledger.cpp
index 81e610c33d..5549c23433 100644
--- a/src/Ledger.cpp
+++ b/src/Ledger.cpp
@@ -463,12 +463,18 @@ void Ledger::setCloseTime(boost::posix_time::ptime ptm)
 	mCloseTime = iToSeconds(ptm);
 }
 
+uint64 Ledger::sGenesisClose = 0;
+
 uint64 Ledger::getNextLedgerClose() const
 {
 	if (mCloseTime == 0)
 	{
-		uint64 closeTime = theApp->getOPs().getNetworkTimeNC() + mLedgerInterval - 1;
-		return closeTime - (closeTime % mLedgerInterval);
+		if (sGenesisClose == 0)
+		{
+			uint64 closeTime = theApp->getOPs().getNetworkTimeNC() + mLedgerInterval - 1;
+			sGenesisClose = closeTime - (closeTime % mLedgerInterval);
+		}
+		return sGenesisClose;
 	}
 	return mCloseTime + mLedgerInterval;
 }
diff --git a/src/Ledger.h b/src/Ledger.h
index 1f9c8b6c60..598c148b2d 100644
--- a/src/Ledger.h
+++ b/src/Ledger.h
@@ -67,6 +67,8 @@ private:
 	uint16		mLedgerInterval;
 	bool		mClosed, mValidHash, mAccepted, mImmutable;
 
+	static uint64 sGenesisClose;
+
 	SHAMap::pointer mTransactionMap, mAccountStateMap;
 
 	mutable boost::recursive_mutex mLock;
diff --git a/src/LedgerConsensus.cpp b/src/LedgerConsensus.cpp
index fc6a798c0e..30c1b404f1 100644
--- a/src/LedgerConsensus.cpp
+++ b/src/LedgerConsensus.cpp
@@ -824,6 +824,7 @@ void LedgerConsensus::accept(SHAMap::pointer set)
 
 	if (mValidating)
 	{
+		assert (theApp->getOPs().getNetworkTimeNC() > newLCL->getCloseTimeNC());
 		SerializedValidation::pointer v = boost::make_shared<SerializedValidation>
 			(newLCLHash, newLCL->getCloseTimeNC(), mOurPosition->peekSeed(), true);
 		v->setTrusted();
diff --git a/src/ValidationCollection.cpp b/src/ValidationCollection.cpp
index b30ea4a00f..59b725f0d7 100644
--- a/src/ValidationCollection.cpp
+++ b/src/ValidationCollection.cpp
@@ -15,7 +15,7 @@ bool ValidationCollection::addValidation(SerializedValidation::pointer val)
 		if ((now > valClose) && (now < (valClose + 2 * LEDGER_INTERVAL)))
 			isTrusted = true;
 		else
-		Log(lsWARNING) << "Received stale validation";
+		Log(lsWARNING) << "Received stale validation now=" << now << ", close=" << valClose;
 	}
 
 	uint256 hash = val->getLedgerHash();