diff --git a/src/main.cpp b/src/main.cpp
index cf854719e..ab49d70e7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2251,6 +2251,10 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     vPos.reserve(block.vtx.size());
     blockundo.vtxundo.reserve(block.vtx.size() - 1);
 
+    std::vector<std::pair<CAddressIndexKey, CAmount> > addressIndex;
+    std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > addressUnspentIndex;
+    std::vector<std::pair<CSpentIndexKey, CSpentIndexValue> > spentIndex;
+
     // Construct the incremental merkle tree at the current
     // block position,
     auto old_tree_root = view.GetBestAnchor();