diff --git a/doc/html/C/xacc-about.html b/doc/html/C/xacc-about.html
index 5d7226d6be..5938b5ebfe 100644
--- a/doc/html/C/xacc-about.html
+++ b/doc/html/C/xacc-about.html
@@ -710,6 +710,8 @@
 <ul>
 <li>engine -- contents of the src/engine and the include directories
 <li>register -- contents of the register directory
+<li>ledger -- *.c, *.h files in the src directory only
+<li>motif -- contents of src/motif directory
 <li>gnome -- src/gnome plus src/register/gnome
 <li>scheme -- scheme and guile code -- src/scm plus src/guile
 <li>docs -- english-only html docs (user documentation)