diff --git a/doc/asdf.texinfo b/doc/asdf.texinfo
index 70d8085b5e93cd1b746ff8e8cb1a1b617301e5e6..e6a741edc578864e0e33cbb6f3c9fe07ae5d86bb 100644
--- a/doc/asdf.texinfo
+++ b/doc/asdf.texinfo
@@ -124,6 +124,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 @c * Operations::
 @c * Components::
+@c * Functions::
 
 @c Operations