diff --git a/system/src/Grav/Framework/Contracts/Image/ImageAdapterInterface.php b/system/src/Grav/Framework/Contracts/Image/ImageAdapterInterface.php
index c9c282212..a26094bba 100644
--- a/system/src/Grav/Framework/Contracts/Image/ImageAdapterInterface.php
+++ b/system/src/Grav/Framework/Contracts/Image/ImageAdapterInterface.php
@@ -191,8 +191,8 @@ interface ImageAdapterInterface extends ImageInfoInterface, ImageSaveInterface
      * @param ImageAdapterInterface $other
      * @param int $x
      * @param int $y
-     * @param positive-int $width
-     * @param positive-int $height
+     * @param int $width
+     * @param int $height
      * @return $this
      */
     public function merge(ImageAdapterInterface $other, int $x = 0, int $y = 0, int $width = 0, int $height = 0);