diff --git a/config/generic-mellow-fly-d5.cfg b/config/generic-mellow-fly-d5.cfg
index 156e656c7..6c7c703d3 100644
--- a/config/generic-mellow-fly-d5.cfg
+++ b/config/generic-mellow-fly-d5.cfg
@@ -9,7 +9,7 @@
 
 # To use this board in CAN bus mode(maybe along with a CAN bus toolhead
 # board), during "make menuconfig", select "Enable low-leveb 
-# configuration options", select the STM21F072 microcontroller, 
+# configuration options", select the STM32F072 microcontroller, 
 # select a "8KiB bootloader", and select a "8Mhz crystal", 
 # "USB to CAN bus bridge (USB on PA11/PA12)"