diff --git a/firmware/controllers/engine_cycle/main_trigger_callback.cpp b/firmware/controllers/engine_cycle/main_trigger_callback.cpp
index 419d0783b6..eda23c86dc 100644
--- a/firmware/controllers/engine_cycle/main_trigger_callback.cpp
+++ b/firmware/controllers/engine_cycle/main_trigger_callback.cpp
@@ -26,7 +26,7 @@
 
 #if EFI_PRINTF_FUEL_DETAILS
 	bool printFuelDebug = false;
-#endif
+#endif // EFI_PRINTF_FUEL_DETAILS
 
 #if EFI_ENGINE_CONTROL && EFI_SHAFT_POSITION_INPUT
 
diff --git a/unit_tests/efifeatures.h b/unit_tests/efifeatures.h
index 910f15331f..5af53c1aec 100644
--- a/unit_tests/efifeatures.h
+++ b/unit_tests/efifeatures.h
@@ -11,6 +11,8 @@
 
 #define EFI_ENABLE_ASSERTS TRUE
 
+#define EFI_PRINTF_FUEL_DETAILS TRUE
+
 #define EFI_CJ125 TRUE
 
 #define ENABLE_PERF_TRACE FALSE