diff --git a/firmware/config/engines/custom_engine.cpp b/firmware/config/engines/custom_engine.cpp
index 2b83bd02e1..f91a53f158 100644
--- a/firmware/config/engines/custom_engine.cpp
+++ b/firmware/config/engines/custom_engine.cpp
@@ -242,6 +242,7 @@ void setFrankensoBoardTestConfiguration(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
 }
 
 // ETB_BENCH_ENGINE
+// set engine_type 58
 void setEtbTestConfiguration(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
 	// VAG test ETB
 	// set tps_min 54