diff --git a/proposals/3083-restricted-rooms.md b/proposals/3083-restricted-rooms.md
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--- a/proposals/3083-restricted-rooms.md
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@@ -1,6 +1,6 @@
 # Restricting room membership based on space membership
 
-Draft join rule changes for [spaces](https://github.com/matrix-org/matrix-doc/pull/1772),
+Draft join rule changes for [MSC1772: spaces](https://github.com/matrix-org/matrix-doc/pull/1772),
 this is meant to replaces the second half of [MSC2962](https://github.com/matrix-org/matrix-doc/pull/2962/).
 
 A desirable feature is to give room admins the power to restrict membership of