diff --git a/unit_tests/tests/test_cpp_memory_layout.cpp b/unit_tests/tests/test_cpp_memory_layout.cpp
index cc7b6dde28..78c7d4348e 100644
--- a/unit_tests/tests/test_cpp_memory_layout.cpp
+++ b/unit_tests/tests/test_cpp_memory_layout.cpp
@@ -99,6 +99,6 @@ TEST(CppMemoryLayout, structSize) {
 	ASSERT_EQ(1, sizeof(pin_input_mode_e)) << "pin_input_mode_e enum size";
 	ASSERT_EQ(1, sizeof(pin_output_mode_e)) << "pin_output_mode_e enum size";
 	ASSERT_EQ(2, sizeof(brain_pin_e)) << "brain_pin_e enum size";
-	ASSERT_EQ(16, sizeof(air_pressure_sensor_config_s));
+	ASSERT_EQ(12, sizeof(air_pressure_sensor_config_s));
 	ASSERT_EQ(TOTAL_CONFIG_SIZE, sizeof(persistent_config_s));
 }