diff --git a/tests/e2e/Services/GraphQL/StorageServerTest.php b/tests/e2e/Services/GraphQL/StorageServerTest.php
index f54b4fa63a..2c648be99a 100644
--- a/tests/e2e/Services/GraphQL/StorageServerTest.php
+++ b/tests/e2e/Services/GraphQL/StorageServerTest.php
@@ -105,6 +105,16 @@ class StorageServerTest extends Scope
         $buckets = $buckets['body']['data']['storageListBuckets'];
         $this->assertIsArray($buckets);
 
+        if (!empty($buckets['buckets'])) {
+            foreach ($buckets['buckets'] as $bucket) {
+                $this->assertArrayHasKey('totalSize', $bucket);
+                $this->assertIsInt($bucket['totalSize']);
+
+                /* always 0 because the stats worker runs hourly! */
+                $this->assertGreaterThanOrEqual(0, $bucket['totalSize']);
+            }
+        }
+
         return $buckets;
     }
 
diff --git a/tests/e2e/Services/Storage/StorageCustomServerTest.php b/tests/e2e/Services/Storage/StorageCustomServerTest.php
index 5aa9010601..9b0473a352 100644
--- a/tests/e2e/Services/Storage/StorageCustomServerTest.php
+++ b/tests/e2e/Services/Storage/StorageCustomServerTest.php
@@ -96,6 +96,14 @@ class StorageCustomServerTest extends Scope
         $this->assertEquals($id, $response['body']['buckets'][0]['$id']);
         $this->assertEquals('Test Bucket', $response['body']['buckets'][0]['name']);
 
+        foreach ($response['body']['buckets'] as $bucket) {
+            $this->assertArrayHasKey('totalSize', $bucket);
+            $this->assertIsInt($bucket['totalSize']);
+
+            /* always 0 because the stats worker runs hourly! */
+            $this->assertGreaterThanOrEqual(0, $bucket['totalSize']);
+        }
+
         $response = $this->client->call(Client::METHOD_GET, '/storage/buckets', array_merge([
             'content-type' => 'application/json',
             'x-appwrite-project' => $this->getProject()['$id'],