diff --git a/Makefile b/Makefile
index bdf393f..5925992 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ OPTFLAGS = -march=native
 # Mac ARM doesn't support -march=native
 ifeq ($(shell uname -s), Darwin)
 	ifeq ($(shell uname -p), arm)
+		# no difference with -march=armv8.5-a
 		OPTFLAGS =
 	endif
 endif