diff --git a/firmware/controllers/algo/advance_map.h b/firmware/controllers/algo/advance_map.h
index 0beea86211..9e8d47a7f4 100644
--- a/firmware/controllers/algo/advance_map.h
+++ b/firmware/controllers/algo/advance_map.h
@@ -11,6 +11,9 @@
 
 angle_t getAdvance(int rpm, float engineLoad);
 angle_t getCylinderIgnitionTrim(size_t cylinderNumber, int rpm, float ignitionLoad);
+/**
+ * this method is used to build default advance map
+ */
 float getInitialAdvance(int rpm, float map, float advanceMax);
 
 size_t getMultiSparkCount(int rpm);