diff --git a/src/builders/project-query.js b/src/builders/project-query.js
index b8dd4d25..44a68ab9 100644
--- a/src/builders/project-query.js
+++ b/src/builders/project-query.js
@@ -1,9 +1,13 @@
-/**
- * Returns project query for past/upcoming launches
-*/
 
+// Prevent incorrect input
 const lowerCase = require('lower-case');
 
+/**
+ * Builds Mongo projection object to show/hide document id field
+ * @param {Object} req The Express request object to access querystrings
+ * @return {Object} Mongo compatible projection object
+ */
+
 exports.queryProject = (req) => {
   const query = {};