diff --git a/src/ripple/app/ledger/LedgerHistory.cpp b/src/ripple/app/ledger/LedgerHistory.cpp
index 3c976801a4..d851932c5b 100644
--- a/src/ripple/app/ledger/LedgerHistory.cpp
+++ b/src/ripple/app/ledger/LedgerHistory.cpp
@@ -138,7 +138,7 @@ void LedgerHistory::handleMismatch (LedgerHash const& built, LedgerHash  const&
 
     if (builtLedger && validLedger)
     {
-        assert (builtLedger->getLedgerSeq() != validLedger->getLedgerSeq());
+        assert (builtLedger->getLedgerSeq() == validLedger->getLedgerSeq());
 
         // Determine the mismatch reason
         // Distinguish Byzantine failure from transaction processing difference