diff --git a/index.js b/index.js
index caf97e4..64176fe 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.toString());
 
 const apiserver = require('komodo-sdk/api-server');
 const pullgw = require('komodo-sdk/gateway/pull');