diff --git a/src/main.cpp b/src/main.cpp
index b7c48332a..1bcde7710 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -382,12 +382,13 @@ void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) {
 
     ProcessBlockAvailability(nodeid);
 
-    BlockMap::iterator it = mapBlockIndex.find(hash);
+    /*BlockMap::iterator it = mapBlockIndex.find(hash);
     if (it != mapBlockIndex.end() && it->second->nChainWork > 0) {
         // An actually better block was announced.
         if (state->pindexBestKnownBlock == NULL || it->second->nChainWork >= state->pindexBestKnownBlock->nChainWork)
             state->pindexBestKnownBlock = it->second;
-    } else {
+    } else*/
+    {
         // An unknown block was announced; just assume that the latest one is the best one.
         state->hashLastUnknownBlock = hash;
     }