diff --git a/variants/STM32F4xx/F401CC(F-U-Y)_F401C(B-D-E)(U-Y)/variant_BLACKPILL_F401CC.h b/variants/STM32F4xx/F401CC(F-U-Y)_F401C(B-D-E)(U-Y)/variant_BLACKPILL_F401CC.h
index e87264598c..a23dc96f8c 100644
--- a/variants/STM32F4xx/F401CC(F-U-Y)_F401C(B-D-E)(U-Y)/variant_BLACKPILL_F401CC.h
+++ b/variants/STM32F4xx/F401CC(F-U-Y)_F401C(B-D-E)(U-Y)/variant_BLACKPILL_F401CC.h
@@ -81,7 +81,8 @@
 
 // On-board user button
 #ifndef USER_BTN
-  #define USER_BTN              ND
+  // User button is not available on all revision of this board
+  #define USER_BTN              PA0
 #endif
 
 // SPI definitions