diff --git a/org-babel.org b/org-babel.org
index ef87f9350..8549584e8 100644
--- a/org-babel.org
+++ b/org-babel.org
@@ -219,6 +219,9 @@ would then be [[#sandbox][the sandbox]].
 
   
 * Tasks [46/65]
+** TODO allow tangle to be called on a single source block
+this should have a reasonable binding
+
 ** STARTED share org-babel [1/7]
 how should we share org-babel?
 *** DONE post to org-mode