diff --git a/src/coins.cpp b/src/coins.cpp
index 7bb05f68c1a..39c9c12dbee 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -372,12 +372,13 @@ CCoinsViewCache::ResetGuard CoinsViewOverlay::StartFetching(const CBlock& block
     Assert(m_inputs.empty());
     Assert(m_input_head.load(std::memory_order_relaxed) == 0);
     Assert(m_input_tail == 0);
-    if (const auto workers_count{m_thread_pool->WorkersCount()}; workers_count > 0) {
+    if (const auto workers_count{m_thread_pool->WorkersCount()}; workers_count > 0 && block.vtx.size() > 1) {
         // Loop through the block inputs and set their prevouts in the queue.
         // Filter inputs that spend outputs created earlier in the same block. These outputs will be created
         // directly in the cache from the tx that creates them, so they will not be requested from a base view.
         std::unordered_set<Txid, SaltedTxidHasher> earlier_txids;
         earlier_txids.reserve(block.vtx.size());
+        earlier_txids.emplace(block.vtx[0]->GetHash());
         for (const auto& tx : block.vtx | std::views::drop(1)) {
             for (const auto& input : tx->vin) {
                 if (!earlier_txids.contains(input.prevout.hash)) m_inputs.emplace_back(input.prevout);