diff --git a/src/MediaController.php b/src/MediaController.php
index ab5a685..b72bc10 100644
--- a/src/MediaController.php
+++ b/src/MediaController.php
@@ -78,6 +78,8 @@ class MediaController
         $model = $model::find($parentId);
         $isSingle = 1 === $model->getMediaCollection($collection)->collectionSizeLimit;
 
+        abort_if($isSingle && !$model->getFirstMedia($collection), 404);
+
         return $isSingle
             ? MediaData::from($model->getFirstMedia($collection))
             : MediaData::collection($model->getMedia($collection));
diff --git a/tests/Feature/IndexTest.php b/tests/Feature/IndexTest.php
index 857b161..9f6d456 100644
--- a/tests/Feature/IndexTest.php
+++ b/tests/Feature/IndexTest.php
@@ -27,3 +27,12 @@ test('it gets media for single', function () {
     $response->assertJsonPath('id', $media->id);
     $response->assertJsonPath('properties.test', 'old');
 });
+
+test('it returns 404 when media not found', function () {
+    $this->auth()->registerModel();
+    $post = $this->newPost();
+
+    $response = $this->getJson("/mediaupload/post/{$post->id}/defaultSingleFile");
+
+    $response->assertStatus(404);
+});