diff --git a/gdk-pixbuf2.spec b/gdk-pixbuf2.spec
index 69b2682..125c819 100644
--- a/gdk-pixbuf2.spec
+++ b/gdk-pixbuf2.spec
@@ -20,7 +20,7 @@ BuildRequires:  gobject-introspection-devel
 # layer; we need to actually have the mime type database.
 BuildRequires:  shared-mime-info
 # Bootstrap requirements
-BuildRequires: autoconf automake libtool
+BuildRequires: autoconf automake libtool gtk-doc
 BuildRequires: gettext-autopoint
 
 # We also need MIME information at runtime