diff --git a/nghttp2.spec b/nghttp2.spec
index 8e44554..2ec2f87 100644
--- a/nghttp2.spec
+++ b/nghttp2.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package nghttp2
 #
-# 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
@@ -36,13 +36,14 @@ BuildRequires:  automake
 BuildRequires:  boost-devel
 BuildRequires:  gcc-c++
 BuildRequires:  libtool
-BuildRequires:  pkg-config
+BuildRequires:  pkgconfig
 BuildRequires:  python-Cython
 BuildRequires:  python-Sphinx
 BuildRequires:  python-setuptools
 BuildRequires:  pkgconfig(cunit)
 BuildRequires:  pkgconfig(jansson)
 BuildRequires:  pkgconfig(jemalloc)
+BuildRequires:  pkgconfig(libcares)
 BuildRequires:  pkgconfig(libev)
 BuildRequires:  pkgconfig(libspdylay)
 BuildRequires:  pkgconfig(libxml-2.0)