diff --git a/index.ts b/index.ts
index 5e6f9e7..99f78da 100644
--- a/index.ts
+++ b/index.ts
@@ -53,7 +53,7 @@ const defaults: Config = {
 	withContext: true,
 };
 
-module.exports = function jsonLayout(config: Config): log4js.LayoutFunction {
+export function jsonLayout(config: Config): log4js.LayoutFunction {
 	config = Object.assign(config, defaults);
 
 	return function layout(event: log4js.LoggingEvent): string {
@@ -62,4 +62,6 @@ module.exports = function jsonLayout(config: Config): log4js.LayoutFunction {
 		const output = JSON.stringify(formated);
 		return output;
 	};
-};
+}
+
+module.exports = jsonLayout;
diff --git a/package.json b/package.json
index fe06e00..eadc4d0 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,6 @@
 		"type": "git",
 		"url": "git+https://github.com/xseman/log4js-layout-json.git"
 	},
-	"type": "module",
 	"scripts": {
 		"build": "tsc",
 		"pretest": "tsc",