diff --git a/notes-on-testing.md b/notes-on-testing.md
index a7e4e84..bb4863a 100644
--- a/notes-on-testing.md
+++ b/notes-on-testing.md
@@ -4,7 +4,7 @@
 
 - discussion on the MM 20/12 - error handling.  Find out how to trigger each error response mentioned, to verify that they are handled correctly.
 [Maibox_coverage_matrix.ods](uploads/6eb0d54b9d22dc1cd5eb870964ee106d/Maibox_coverage_matrix.ods)
-
+- https://code.briarproject.org/briar/briar/-/issues/2191 will give rise to a few scenarios
 
 
 [Back to Testing](https://code.briarproject.org/briar/briar/-/wikis/testing)
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