diff --git a/libnettle.changes b/libnettle.changes
index 21321b9..037a14e 100644
--- a/libnettle.changes
+++ b/libnettle.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Feb  9 14:05:03 UTC 2017 - dimstar@opensuse.org
+
+- Explicitly BuildRequire m4
+
 -------------------------------------------------------------------
 Fri Oct 28 13:20:46 UTC 2016 - astieger@suse.com
 
diff --git a/libnettle.spec b/libnettle.spec
index 0cf4cbd..adb1455 100644
--- a/libnettle.spec
+++ b/libnettle.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libnettle
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -32,6 +32,7 @@ Source3:        baselibs.conf
 # PATCH-FIX-UPSTREAM respect cflags while building
 Patch0:         nettle-respect-cflags.patch
 BuildRequires:  gmp-devel
+BuildRequires:  m4
 BuildRequires:  makeinfo
 BuildRequires:  pkgconfig
 Requires(post): %{install_info_prereq}