diff --git a/index.js b/index.js
index d20e199..9f9e113 100644
--- a/index.js
+++ b/index.js
@@ -103,7 +103,7 @@ function diff(current, checked) {
 
 app.post("/updates/:project(\\w+)", (req, res) => {
   let project_id = req.params['project'];
-  const body = String(req.body) || "";
+  const body = (typeof req.body == "string") ? req.body : "";
   let adjustedBody = body.replace(/\r/, "");
   let indexes = get_indexes(project_id);
   let difference = diff(indexes, adjustedBody);