diff --git a/src/test/blockchain_tests.cpp b/src/test/blockchain_tests.cpp
index bc509d73acc..b7203e4bd40 100644
--- a/src/test/blockchain_tests.cpp
+++ b/src/test/blockchain_tests.cpp
@@ -110,4 +110,11 @@ BOOST_FIXTURE_TEST_CASE(get_prune_height, TestChain100Setup)
     CheckGetPruneHeight(blockman, chain, 100);
 }
 
+BOOST_AUTO_TEST_CASE(num_chain_tx_max)
+{
+    CBlockIndex block_index{};
+    block_index.nChainTx = std::numeric_limits<uint64_t>::max();
+    BOOST_CHECK_EQUAL(block_index.nChainTx, std::numeric_limits<uint64_t>::max());
+}
+
 BOOST_AUTO_TEST_SUITE_END()