diff --git a/tests/core_tests/chaingen.cpp b/tests/core_tests/chaingen.cpp
index 16e564ef..f03bf1a2 100644
--- a/tests/core_tests/chaingen.cpp
+++ b/tests/core_tests/chaingen.cpp
@@ -1055,6 +1055,7 @@ bool test_generator::construct_pow_block_with_alias_info_in_coinbase(const accou
       miner_tx.vout.clear();
 
       tx_generation_context tx_gen_context{};
+      tx_gen_context.set_tx_key(tx_key);
       tx_gen_context.resize(/* ZC ins: */ 0, /* OUTS: */ alias_cost != 0 ? 3 : 2);
       std::set<unsigned short> deriv_cache;
       finalized_tx fin_tx_stub{};