diff --git a/src/test/fuzz/utxo_snapshot.cpp b/src/test/fuzz/utxo_snapshot.cpp
index 5a9df1e48a4..825fada9dda 100644
--- a/src/test/fuzz/utxo_snapshot.cpp
+++ b/src/test/fuzz/utxo_snapshot.cpp
@@ -7,6 +7,7 @@
 #include <coins.h>
 #include <consensus/consensus.h>
 #include <consensus/validation.h>
+#include <kernel/coinstats.h>
 #include <node/blockstorage.h>
 #include <node/utxo_snapshot.h>
 #include <primitives/block.h>
@@ -39,7 +40,31 @@ using node::SnapshotMetadata;
 namespace {
 
 const std::vector<std::shared_ptr<CBlock>>* g_chain;
-TestingSetup* g_setup;
+TestingSetup* g_setup{nullptr};
+
+/** Sanity check the assumeutxo values hardcoded in chainparams for the fuzz target. */
+void sanity_check_snapshot()
+{
+    Assert(g_chain && g_setup == nullptr);
+
+    // Create a temporary chainstate manager to connect the chain to.
+    const auto tmp_setup{MakeNoLogFileContext<TestingSetup>(ChainType::REGTEST, TestOpts{.setup_net = false})};
+    const auto& node{tmp_setup->m_node};
+    for (auto& block: *g_chain) {
+        ProcessBlock(node, block);
+    }
+
+    // Connect the chain to the tmp chainman and sanity check the chainparams snapshot values.
+    LOCK(cs_main);
+    auto& cs{node.chainman->ActiveChainstate()};
+    cs.ForceFlushStateToDisk();
+    const auto stats{*Assert(kernel::ComputeUTXOStats(kernel::CoinStatsHashType::HASH_SERIALIZED, &cs.CoinsDB(), node.chainman->m_blockman))};
+    const auto cp_au_data{*Assert(node.chainman->GetParams().AssumeutxoForHeight(2 * COINBASE_MATURITY))};
+    Assert(stats.nHeight == cp_au_data.height);
+    Assert(stats.nTransactions + 1 == cp_au_data.m_chain_tx_count); // +1 for the genesis tx.
+    Assert(stats.hashBlock == cp_au_data.blockhash);
+    Assert(AssumeutxoHash{stats.hashSerialized} == cp_au_data.hash_serialized);
+}
 
 template <bool INVALID>
 void initialize_chain()
@@ -47,6 +72,10 @@ void initialize_chain()
     const auto params{CreateChainParams(ArgsManager{}, ChainType::REGTEST)};
     static const auto chain{CreateBlockChain(2 * COINBASE_MATURITY, *params)};
     g_chain = &chain;
+
+    // Make sure we can generate a valid snapshot.
+    sanity_check_snapshot();
+
     static const auto setup{
         MakeNoLogFileContext<TestingSetup>(ChainType::REGTEST,
                                            TestOpts{