1 files changed, 3 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 3d5b3ed..bf83693 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
-CFLAGS=-I. -pthread -Wall -Wextra -Wpedantic -std=c99 -O3 -lm
-CFLAGS+=  -Wshadow -Wstrict-prototypes -Wundef -Wpointer-arith -Wcast-align -Wstrict-overflow=5 -Wswitch-default
-CFLAGS+= -Wunreachable-code -Wswitch-enum -Wformat=2 -g
+CFLAGS=-I. -pthread -Wall -Wextra -Wpedantic -O3 -lm
+CFLAGS+= -Wshadow -Wstrict-prototypes -Wundef -Wpointer-arith -Wcast-align -Wstrict-overflow=5 -Wswitch-default
+CFLAGS+= -Wunreachable-code -Wswitch-enum -Wformat=2 -Wc11-extensions -g
 PREFIX ?= /usr
 BINDIR ?= ${PREFIX}/bin