diff --git a/ChangeLog b/ChangeLog
index 916b3d1906..a63712ba05 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-09-07  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/bits/socket.h (SOL_TLS): New macro.
+
 2017-09-07  Mike FABIAN  <mfabian@redhat.com>
 
 	* localedata/locales/om_ET (LC_TIME): use ASCII for better readability.
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index ec2bf8564f..a9d16e2bc8 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -163,6 +163,7 @@ typedef __socklen_t socklen_t;
 #define SOL_ALG		279
 #define SOL_NFC		280
 #define SOL_KCM		281
+#define SOL_TLS		282
 
 /* Maximum queue length specifiable by listen.  */
 #define SOMAXCONN	128