diff --git a/unittests/api_tests.cpp b/unittests/api_tests.cpp
index 889225715f..a25e96f0ad 100644
--- a/unittests/api_tests.cpp
+++ b/unittests/api_tests.cpp
@@ -3921,7 +3921,7 @@ void test_finality_transition(const vector<account_name>& accounts, const base_t
    validating_tester t;
 
    uint32_t lib = 0;
-   t.control->irreversible_block.connect([&](const block_signal_params& t) {
+   t.control->irreversible_block().connect([&](const block_signal_params& t) {
       const auto& [ block, id ] = t;
       lib = block->block_num();
    });
diff --git a/unittests/producer_schedule_if_tests.cpp b/unittests/producer_schedule_if_tests.cpp
index 9d84ded4af..efc3a7856f 100644
--- a/unittests/producer_schedule_if_tests.cpp
+++ b/unittests/producer_schedule_if_tests.cpp
@@ -52,7 +52,7 @@ BOOST_FIXTURE_TEST_CASE( verify_producer_schedule_after_instant_finality_activat
    };
 
    uint32_t lib = 0;
-   control->irreversible_block.connect([&](const block_signal_params& t) {
+   control->irreversible_block().connect([&](const block_signal_params& t) {
       const auto& [ block, id ] = t;
       lib = block->block_num();
    });