diff --git a/mk/environ.mk b/mk/environ.mk
index 4772b9dc6c..eb03e36b1a 100644
--- a/mk/environ.mk
+++ b/mk/environ.mk
@@ -182,7 +182,6 @@ endif
 
 ifneq ($(findstring flymaple, $(MAKECMDGOALS)),)
 HAL_BOARD = HAL_BOARD_FLYMAPLE
-HAL_BOARD_SUBTYPE = HAL_BOARD_SUBTYPE_NONE
 endif
 
 # default to APM2