diff --git a/package.json b/package.json
index ab6b323..9110e84 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "virtual-printer",
-  "version": "1.0.16",
+  "version": "1.0.17",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "license": "MIT",
diff --git a/src/printer/printer.ts b/src/printer/printer.ts
index 32ba8b2..1ed42a6 100644
--- a/src/printer/printer.ts
+++ b/src/printer/printer.ts
@@ -19,7 +19,7 @@ interface PrinterOptionsRequest {
   /**
    * for fastify host and port
    */
-  serverUrl?: URL;
+  serverUrl?: URL | string;
   /**
    * printer-uri-supported (1setOf uri)
    */