diff --git a/jsnlog/index.d.ts b/jsnlog/index.d.ts
index 4b525c75af..e252d5cf36 100644
--- a/jsnlog/index.d.ts
+++ b/jsnlog/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for JSNLog 2.17.3
+// Type definitions for JSNLog 2.17
 // Project: https://github.com/mperdeck/jsnlog.js
 // Definitions by: Mattijs Perdeck <https://github.com/mperdeck>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -8,7 +8,7 @@
 // http://jsnlog.com
 // -------------------------------
 
-/**
+/**
 * Copyright 2016 Mattijs Perdeck.
 *
 * This project is licensed under the MIT license.
@@ -33,6 +33,7 @@ declare namespace JL {
 		clientIP?: string;
 		requestId?: string;
 		defaultBeforeSend?: (xhr: XMLHttpRequest) => void;
+		serialize?: (obj: any) => string;
 	}
 
 	interface JSNLogFilterOptions {
@@ -87,7 +88,7 @@ declare namespace JL {
 
 declare function __jsnlog_configure(jsnlog: any): void;
 
-
+
 // Ambient declaration of the JL function itself
 declare function JL(loggerName?: string): JL.JSNLogLogger;
 
diff --git a/jsnlog/jsnlog-tests.ts b/jsnlog/jsnlog-tests.ts
index db2b2a2523..64078fbd58 100644
--- a/jsnlog/jsnlog-tests.ts
+++ b/jsnlog/jsnlog-tests.ts
@@ -18,7 +18,8 @@ JL.setOptions({
 		defaultAjaxUrl: '/jsnlog.logger',
 		clientIP: '0.0.0.0',
 		requestId: 'a reuest id',
-		defaultBeforeSend: null
+		defaultBeforeSend: null,
+		serialize: (obj) => JSON.stringify(obj)
 });
 
 // ----------------------------------------------------------
diff --git a/jsnlog/tslint.json b/jsnlog/tslint.json
new file mode 100644
index 0000000000..9bc375c06b
--- /dev/null
+++ b/jsnlog/tslint.json
@@ -0,0 +1,6 @@
+{
+    "extends": "../tslint.json",
+    "rules": {
+        "no-empty-interface": false
+    }
+}
\ No newline at end of file