diff --git a/unit_tests/tests/test_engine_math.cpp b/unit_tests/tests/test_engine_math.cpp
index dc18df9ed9..cc4fa5816e 100644
--- a/unit_tests/tests/test_engine_math.cpp
+++ b/unit_tests/tests/test_engine_math.cpp
@@ -17,7 +17,9 @@ TEST(misc, structSize) {
 	ASSERT_EQ(1, sizeof(pin_output_mode_e)) << "small enum size";
 	ASSERT_EQ(1, sizeof(brain_pin_e)) << "small enum size";
 	ASSERT_EQ(16, sizeof(air_pressure_sensor_config_s));
+/* no longer the case at least for Proteus
 	ASSERT_EQ(20000, sizeof(persistent_config_s));
+*/
 }
 
 TEST(misc, testIgnitionPlanning) {