1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index d091e68..1751acd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS = -D_POSIX_C_SOURCE=200809L -O2 -Wall
+CFLAGS = -D_POSIX_C_SOURCE=200809L -std=c99 -Os -Wall
 
 SRCS = $(sort $(wildcard *.c))
 OBJS = $(SRCS:.c=.o)