diff --git a/app.js b/app.js
index fabdfb1..19ea293 100644
--- a/app.js
+++ b/app.js
@@ -14,9 +14,11 @@ const listRtr  = require('./src/routes/list.routes');
 // Print version number:
 console.log(`Starting OwlBoard, API version ${version.api}`);
 
-// Middleware:
+// Submodules:
 app.use(express.json()); //JSON Parsing for POST Requests
 app.use(express.static('static')); //Serve static content from static
+
+// Error Handling:
 app.use((err, req, res, next) => {
   const statusCode = err.statuscode || 500;
   console.error(err.message, err.stack);