diff --git a/changelogs/client_server/newsfragments/2878.clarification b/changelogs/client_server/newsfragments/2878.clarification
new file mode 100644
index 00000000..3ccb2333
--- /dev/null
+++ b/changelogs/client_server/newsfragments/2878.clarification
@@ -0,0 +1 @@
+Fix various typos throughout the specification.
diff --git a/specification/modules/instant_messaging.rst b/specification/modules/instant_messaging.rst
index 705fd2d9..704277a1 100644
--- a/specification/modules/instant_messaging.rst
+++ b/specification/modules/instant_messaging.rst
@@ -121,7 +121,7 @@ the tag and its contents and therefore may wish to exclude the tag entirely.
 
 .. Note::
    A future iteration of the specification will support more powerful and extensible
-   message formatting options, such as the proposal `MSC1225 <https://github.com/matrix-org/matrix-doc/issues/1225>`_.
+   message formatting options, such as the proposal `MSC1767 <https://github.com/matrix-org/matrix-doc/pull/1767>`_.
 
 {{msgtype_events}}