diff --git a/packages/astro/test/content-layer.test.js b/packages/astro/test/content-layer.test.js
index f170f4892cc44..28a3c3811657b 100644
--- a/packages/astro/test/content-layer.test.js
+++ b/packages/astro/test/content-layer.test.js
@@ -87,6 +87,14 @@ describe('Content Layer', () => {
 			]);
 		});
 
+		it('Returns nested json `file()` loader collection', async () => {
+			assert.ok(json.hasOwnProperty('nestedJsonLoader'));
+			assert.ok(Array.isArray(json.nestedJsonLoader));
+
+			const ids = json.nestedJsonLoader.map((item) => item.data.id);
+			assert.deepEqual(ids, ['bluejay', 'robin', 'sparrow', 'cardinal', 'goldfinch']);
+		});
+
 		it('Returns yaml `file()` loader collection', async () => {
 			assert.ok(json.hasOwnProperty('yamlLoader'));
 			assert.ok(Array.isArray(json.yamlLoader));
diff --git a/packages/astro/test/fixtures/content-layer/src/content/config.ts b/packages/astro/test/fixtures/content-layer/src/content/config.ts
index e8fc7fb84adee..6659dfdad39b4 100644
--- a/packages/astro/test/fixtures/content-layer/src/content/config.ts
+++ b/packages/astro/test/fixtures/content-layer/src/content/config.ts
@@ -76,6 +76,18 @@ const fish = defineCollection({
 	}),
 });
 
+const birds = defineCollection({
+	loader: file('src/data/birds.json', {
+		parser: (text) => JSON.parse(text).birds,
+	}),
+	schema: z.object({
+		id: z.string(),
+		name: z.string(),
+		breed: z.string(),
+		age: z.number(),
+	}),
+});
+
 // Absolute paths should also work
 const absoluteRoot = new URL('../../content-outside-src', import.meta.url);
 
@@ -164,6 +176,7 @@ export const collections = {
 	dogs,
 	cats,
 	fish,
+	birds,
 	numbers,
 	spacecraft,
 	increment,
diff --git a/packages/astro/test/fixtures/content-layer/src/data/birds.json b/packages/astro/test/fixtures/content-layer/src/data/birds.json
new file mode 100644
index 0000000000000..3e7d83795a127
--- /dev/null
+++ b/packages/astro/test/fixtures/content-layer/src/data/birds.json
@@ -0,0 +1,34 @@
+{
+  "birds": [
+    {
+      "id": "bluejay",
+      "name": "Blue Jay",
+      "breed": "Cyanocitta cristata",
+      "age": 3
+    },
+    {
+      "id": "robin",
+      "name": "Robin",
+      "breed": "Turdus migratorius",
+      "age": 2
+    },
+    {
+      "id": "sparrow",
+      "name": "Sparrow",
+      "breed": "Passer domesticus",
+      "age": 1
+    },
+    {
+      "id": "cardinal",
+      "name": "Cardinal",
+      "breed": "Cardinalis cardinalis",
+      "age": 4
+    },
+    {
+      "id": "goldfinch",
+      "name": "Goldfinch",
+      "breed": "Spinus tristis",
+      "age": 2
+    }
+  ]
+}
diff --git a/packages/astro/test/fixtures/content-layer/src/pages/collections.json.js b/packages/astro/test/fixtures/content-layer/src/pages/collections.json.js
index 18265095f9b3d..c02d5ee17d81c 100644
--- a/packages/astro/test/fixtures/content-layer/src/pages/collections.json.js
+++ b/packages/astro/test/fixtures/content-layer/src/pages/collections.json.js
@@ -24,6 +24,8 @@ export async function GET() {
 
 	const tomlLoader = await getCollection('songs');
 
+	const nestedJsonLoader = await getCollection('birds');
+
 	return new Response(
 		devalue.stringify({
 			customLoader,
@@ -37,6 +39,7 @@ export async function GET() {
 			images,
 			yamlLoader,
 			tomlLoader,
+			nestedJsonLoader,
 		}),
 	);
 }