diff --git a/Makefile b/Makefile
index d7ab6e6..ea5d105 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS := -Wall -Wextra
+CFLAGS := -Wall -Wextra -std=gnu23
 
 main: main.c
 	gcc ${CFLAGS} -o $@ $^