diff --git a/lib/compat/wordpress-6.4/class-gutenberg-rest-block-patterns-controller.php b/lib/compat/wordpress-6.4/class-gutenberg-rest-block-patterns-controller.php
index 9f686adc82d1d..8128934b9b011 100644
--- a/lib/compat/wordpress-6.4/class-gutenberg-rest-block-patterns-controller.php
+++ b/lib/compat/wordpress-6.4/class-gutenberg-rest-block-patterns-controller.php
@@ -29,6 +29,10 @@ public function prepare_item_for_response( $item, $request ) {
 
 		$data = $response->get_data();
 
+		if ( empty( $data['content'] ) ) {
+			return $response;
+		}
+
 		$blocks          = parse_blocks( $data['content'] );
 		$data['content'] = gutenberg_serialize_blocks( $blocks ); // Serialize or render?