diff --git a/references-to-previous-events.md b/references-to-previous-events.md
index f37e5c52..0befa6b6 100644
--- a/references-to-previous-events.md
+++ b/references-to-previous-events.md
@@ -32,8 +32,8 @@ Some choices:
   ...,
   ...,
   "chain": [
-    <previous event distance>, <previous event ID>,
-    <previous event distance>, <previous event ID>,
+    [<previous event distance>, <previous event ID>],
+    [<previous event distance>, <previous event ID>],
     ...
   ]
 }