diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index 53d9043402..d58bdc88f6 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -263,9 +263,9 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 		}
 
 		if ( ! is_wp_error( $resized ) ) {
-			// Append the threshold size to the image file name. It will look like "my-image-2560.jpg".
+			// Append the threshold size to the image file name. It will look like "my-image-scaled-2560.jpg".
 			// This doesn't affect the sub-sizes names as they are generated from the original image (for best quality).
-			$saved = $editor->save( $editor->generate_filename( $threshold ) );
+			$saved = $editor->save( $editor->generate_filename( 'scaled-' . $threshold ) );
 
 			if ( ! is_wp_error( $saved ) ) {
 				$image_meta = _wp_image_meta_replace_original( $saved, $file, $image_meta, $attachment_id );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 786e6f82e8..16c23ad829 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-RC1-46564';
+$wp_version = '5.3-RC1-46565';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.