diff --git a/src/Appwrite/Utopia/Response/Model/Attribute.php b/src/Appwrite/Utopia/Response/Model/Attribute.php
index 0693e697be..9f9ceca317 100644
--- a/src/Appwrite/Utopia/Response/Model/Attribute.php
+++ b/src/Appwrite/Utopia/Response/Model/Attribute.php
@@ -30,7 +30,7 @@ class Attribute extends Model
             ])
             ->addRule('error', [
                 'type' => self::TYPE_STRING,
-                'description' => 'Error message. Displays error generated when failure of creating or deleting an attribute.',
+                'description' => 'Error message. Displays error generated on failure of creating or deleting an attribute.',
                 'default' => '',
                 'example' => 'string',
             ])
diff --git a/src/Appwrite/Utopia/Response/Model/Index.php b/src/Appwrite/Utopia/Response/Model/Index.php
index 55f6a3c7c2..3d3d1a3b52 100644
--- a/src/Appwrite/Utopia/Response/Model/Index.php
+++ b/src/Appwrite/Utopia/Response/Model/Index.php
@@ -30,7 +30,7 @@ class Index extends Model
             ])
             ->addRule('error', [
                 'type' => self::TYPE_STRING,
-                'description' => 'Error message. Displays error generated when failure of creating or deleting an index.',
+                'description' => 'Error message. Displays error generated on failure of creating or deleting an index.',
                 'default' => '',
                 'example' => 'string',
             ])