diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 2cc7a7e43..4881baa47 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -36,7 +36,7 @@
AbstractReferenceMap made easier for subclassing; PR #51.
-
+
StackOverflowError in SetUniqueList.add() when it receives itself.