diff --git a/Makefile b/Makefile
index 19082dc..8f73efe 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ CC = gcc-11
 CFILES = csv.c
 EXEC = csv2py csvsplit csvnorm csvstat csvecho
 
-CFLAGS += -std=c99 -Wall -Wextra -mavx2 -mfma -mbmi
+CFLAGS += -std=c99 -Wall -Wextra -mavx2 -mfma -mbmi2
 
 # to compile for debug: make DEBUG=1
 # to compile for no debug: make