diff --git a/php/class-media.php b/php/class-media.php
index 2126e91b0..bea57b7b7 100644
--- a/php/class-media.php
+++ b/php/class-media.php
@@ -996,7 +996,7 @@ protected function get_cache_key( $args ) {
 	 * @param int          $attachment_id             The id of the attachment.
 	 * @param array|string $size                      The wp size to set for the URL.
 	 * @param array        $transformations           Set of transformations to apply to this url.
-	 * @param string       $cloudinary_id             Optional forced cloudinary ID.
+	 * @param string|null  $cloudinary_id             Optional forced cloudinary ID.
 	 * @param bool         $overwrite_transformations Flag url is a breakpoint URL to stop re-applying default transformations.
 	 *
 	 * @return string The converted URL.
diff --git a/php/delivery/class-lazy-load.php b/php/delivery/class-lazy-load.php
index 2b058339c..0de5db34d 100644
--- a/php/delivery/class-lazy-load.php
+++ b/php/delivery/class-lazy-load.php
@@ -125,7 +125,7 @@ public function add_features( $tag_element, $attachment_id, $original_tag ) {
 		}
 		$src = $tag_element['atts']['src'];
 		if ( ! $this->media->is_cloudinary_url( $src ) ) {
-			$src = $this->media->cloudinary_url( $attachment_id, array(), array(), array(), $tag_element['cld-overwrite'] );
+			$src = $this->media->cloudinary_url( $attachment_id, array(), array(), null, $tag_element['cld-overwrite'] );
 		}
 		$tag_element['atts']['data-src'] = $src;
 		$transformations                 = $this->media->get_transformations_from_string( $src );
diff --git a/php/delivery/class-responsive-breakpoints.php b/php/delivery/class-responsive-breakpoints.php
index 582cc1cea..39c3c218c 100644
--- a/php/delivery/class-responsive-breakpoints.php
+++ b/php/delivery/class-responsive-breakpoints.php
@@ -57,7 +57,7 @@ protected function setup_hooks() {
 	public function add_features( $tag_element, $attachment_id, $original_tag ) {
 
 		if ( ! $this->media->is_cloudinary_url( $tag_element['atts']['src'] ) ) {
-			$tag_element['atts']['src'] = $this->media->cloudinary_url( $attachment_id, array(), array(), array(), $tag_element['cld-overwrite'] );
+			$tag_element['atts']['src'] = $this->media->cloudinary_url( $attachment_id, array(), array(), null, $tag_element['cld-overwrite'] );
 		}
 		$transformations = $this->media->get_transformations_from_string( $tag_element['atts']['src'] );
 		$original_string = Api::generate_transformation_string( $transformations );