diff --git a/event-schemas/schema/m.room_key_request b/event-schemas/schema/m.room_key_request
index 6893dd78..f495a11d 100644
--- a/event-schemas/schema/m.room_key_request
+++ b/event-schemas/schema/m.room_key_request
@@ -25,7 +25,7 @@ properties:
               The Curve25519 key of the device which initiated the session originally.
           session_id:
             type: string
-            description: The ID of the session holding the key.
+            description: The ID of the session that the key is for.
         required:
           - algorithm
           - room_id