diff --git a/changelog.d/15621.misc b/changelog.d/15621.misc
index 5d060f4dbc86..5dbd0dbbb423 100644
--- a/changelog.d/15621.misc
+++ b/changelog.d/15621.misc
@@ -1 +1 @@
-Update Mutual Rooms (MSC2666) implementation to match new proposal text.
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+Update Mutual Rooms ([MSC2666](https://github.com/matrix-org/matrix-spec-proposals/pull/2666)) implementation to match new proposal text.
\ No newline at end of file