diff --git a/aisleriot.spec b/aisleriot.spec
index ee8e12d..0ea5bcb 100644
--- a/aisleriot.spec
+++ b/aisleriot.spec
@@ -20,6 +20,7 @@ BuildRequires: gstreamer-devel
 BuildRequires: intltool
 BuildRequires: itstool
 BuildRequires: guile-devel
+BuildRequires: appdata-tools
 BuildRequires: yelp-tools
 BuildRequires: desktop-file-utils
 BuildRequires: libappstream-glib