diff --git a/Lib/importlib/NOTES b/Lib/importlib/NOTES
index 8d05a16..2c76fc4 100644
--- a/Lib/importlib/NOTES
+++ b/Lib/importlib/NOTES
@@ -1,6 +1,8 @@
 to do
 /////
 
+* Fill in docstrings for ABCs.
+
 * Implement InspectLoader for BuiltinImporter and FrozenImporter.
 
     + Expose function to see if a frozen module is a package.