diff --git a/Tips-and-Tricks.textile b/Tips-and-Tricks.textile
index 5936b98..663e2e7 100644
--- a/Tips-and-Tricks.textile
+++ b/Tips-and-Tricks.textile
@@ -56,6 +56,9 @@ _todo()
               lsc listfile lf listpri lsp listproj lsproj move \
               mv prepend prep pri p replace report"
 
+    # Add custom commands from add-ons, if installed. 
+    COMMANDS="$COMMANDS $('ls' ${TODO_ACTIONS_DIR:-$HOME/.todo.actions.d}/ 2>/dev/null)"
+
     OPTS="-@ -@@ -+ -++ -d -f -h -p -P -PP -a -n -t -v -vv -V -x"
 
     if [ $COMP_CWORD -eq 1 ]; then