diff --git a/index.js b/index.js
index b0f8af4..20d4d57 100644
--- a/index.js
+++ b/index.js
@@ -1,8 +1,7 @@
-"use strict";
-
 process.chdir(__dirname);
 const fs = require('fs');
-fs.writeFileSync('pid.txt', process.pid);
+
+fs.writeFileSync('pid.txt', `${process.pid}`);
 
 global.KOMODO_LOG_LABEL = 'KOMODO-MESSAGING';
 process.title = global.KOMODO_LOG_LABEL;