diff --git a/Makefile b/Makefile
index e8a5432..b26a4b3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 CC           = clang
 BUILD_TYPE   = debug
-CFLAGS       = -Wall -Wextra -Werror -pedantic
+CFLAGS       = -Wall -Wextra -Werror -pedantic -std=gnu11
 LIBFLAGS     = -fPIC -shared
 KERNEL       = $(shell uname -s)
 MACHINE      = $(shell uname -m)