diff --git a/firmware/config/boards/hellen_mm64_meta.h b/firmware/config/boards/hellen_mm64_meta.h
index 8a83829188..8a23864749 100644
--- a/firmware/config/boards/hellen_mm64_meta.h
+++ b/firmware/config/boards/hellen_mm64_meta.h
@@ -1,8 +1,12 @@
 #pragma once
 
+// TIM4
 #define MM64_OUT_PWM1 B7
+// TIM8
 #define MM64_OUT_PWM2 C8
+// TIM8
 #define MM64_OUT_PWM3 C9
+// TIM1
 #define MM64_OUT_PWM4 A8
 #define MM64_OUT_PWM5 A9
 #define MM64_OUT_PWM6 A15
@@ -80,4 +84,4 @@
 #define MM64_BOOT1 B2
 
 #define MM64_BOARD_ID1 C2
-#define MM64_BOARD_ID2 C3
\ No newline at end of file
+#define MM64_BOARD_ID2 C3