diff --git a/libxklavier.spec b/libxklavier.spec
index 028caca..10ca16b 100644
--- a/libxklavier.spec
+++ b/libxklavier.spec
@@ -11,6 +11,7 @@ BuildRequires: libxkbfile-devel
 BuildRequires: libX11-devel
 BuildRequires: libxml2-devel
 BuildRequires: glib2-devel >= 2.6.0
+BuildRequires: iso-codes-devel
 Source: http://download.gnome.org/sources/libxklavier/3.6/libxklavier-3.6.tar.bz2
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)