diff --git a/src/Faker/Generator.php b/src/Faker/Generator.php
index 2cad02d7a8..225e8e5313 100644
--- a/src/Faker/Generator.php
+++ b/src/Faker/Generator.php
@@ -279,7 +279,7 @@
  *
  * @property string $image
  *
- * @method string image($dir = null, $width = 640, $height = 480, $category = null, $fullPath = true, $randomize = true, $word = null, $gray = false)
+ * @method string image($dir = null, $width = 640, $height = 480, $category = null, $fullPath = true, $randomize = true, $word = null, $gray = false, string $format = 'png')
  *
  * @property string $email
  *