diff --git a/appstream.spec b/appstream.spec
index c2aa2d6..dfa4483 100644
--- a/appstream.spec
+++ b/appstream.spec
@@ -20,6 +20,7 @@ Source0: http://www.freedesktop.org/software/appstream/releases/AppStream-%{vers
 BuildRequires: cmake
 BuildRequires: meson
 BuildRequires: gettext
+BuildRequires: gtk-doc
 BuildRequires: intltool
 BuildRequires: itstool
 BuildRequires: libstemmer-devel