2 files changed, 3 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 8408fde..e876952 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # netlink-notify - Notify about netlink changes
 
-CC	:= gcc
+CC	:= gcc -std=c11
 MD	:= markdown
 CONVERT	:= convert -define png:compression-level=9 -background transparent
 INSTALL	:= install
diff --git a/netlink-notify.h b/netlink-notify.h
index 3ca7430..ced411d 100644
--- a/netlink-notify.h
+++ b/netlink-notify.h
@@ -8,6 +8,8 @@
 #ifndef NETLINK_NOTIFY_H
 #define NETLINK_NOTIFY_H
 
+#define _GNU_SOURCE
+
 #include <asm/types.h>
 #include <getopt.h>
 #include <unistd.h>