diff --git a/src/nix/registry.md b/src/nix/registry.md
index 557e5795b..a1674bd2e 100644
--- a/src/nix/registry.md
+++ b/src/nix/registry.md
@@ -41,7 +41,7 @@ A registry is a JSON file with the following format:
 ```json
 {
   "version": 2,
-  [
+  "flakes": [
     {
       "from": {
         "type": "indirect",