diff --git a/changelogs/client_server/newsfragments/3492.clarification b/changelogs/client_server/newsfragments/3492.clarification
new file mode 100644
index 00000000..1ad1e83d
--- /dev/null
+++ b/changelogs/client_server/newsfragments/3492.clarification
@@ -0,0 +1 @@
+Explicity mention RFC5870 in the definition of `m.location` events
diff --git a/data/event-schemas/schema/m.room.message$m.location.yaml b/data/event-schemas/schema/m.room.message$m.location.yaml
index 5ddf68b7..37f723f2 100644
--- a/data/event-schemas/schema/m.room.message$m.location.yaml
+++ b/data/event-schemas/schema/m.room.message$m.location.yaml
@@ -9,7 +9,7 @@ properties:
         description: "A description of the location e.g. 'Big Ben, London, UK', or some kind of content description for accessibility e.g. 'location attachment'."
         type: string
       geo_uri:
-        description: A geo URI representing this location.
+        description: A [geo URI (RFC5870)](https://datatracker.ietf.org/doc/html/rfc5870) representing this location.
         type: string
       msgtype:
         enum: