diff --git a/src/test/fuzz/process_message.cpp b/src/test/fuzz/process_message.cpp
index 987c04c402..132fb71f4f 100644
--- a/src/test/fuzz/process_message.cpp
+++ b/src/test/fuzz/process_message.cpp
@@ -64,7 +64,9 @@ void initialize_process_message()
 {
     Assert(GetNumMsgTypes() == getAllNetMessageTypes().size()); // If this fails, add or remove the message type below
 
-    static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
+    static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>(
+            /*chain_name=*/CBaseChainParams::REGTEST,
+            /*extra_args=*/{"-txreconciliation"});
     g_setup = testing_setup.get();
     for (int i = 0; i < 2 * COINBASE_MATURITY; i++) {
         MineBlock(g_setup->m_node, CScript() << OP_TRUE);
diff --git a/src/test/fuzz/process_messages.cpp b/src/test/fuzz/process_messages.cpp
index 5eb6e14925..df3bbb6c7a 100644
--- a/src/test/fuzz/process_messages.cpp
+++ b/src/test/fuzz/process_messages.cpp
@@ -23,7 +23,9 @@ const TestingSetup* g_setup;
 
 void initialize_process_messages()
 {
-    static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
+    static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>(
+            /*chain_name=*/CBaseChainParams::REGTEST,
+            /*extra_args=*/{"-txreconciliation"});
     g_setup = testing_setup.get();
     for (int i = 0; i < 2 * COINBASE_MATURITY; i++) {
         MineBlock(g_setup->m_node, CScript() << OP_TRUE);