diff --git a/anatomy/static/js/anatomy.js b/anatomy/static/js/anatomy.js
index ce843a01..0acc0dcb 100644
--- a/anatomy/static/js/anatomy.js
+++ b/anatomy/static/js/anatomy.js
@@ -102,12 +102,12 @@ $(document).ready(function () {
 
     function addToExam(evt) {
 
-      ids = []
+      let ids = []
       $("table input:checked").each((n, el) => {
         ids.push(el.value)
       })
-      post_url = document.getElementById("button-select-add-exam").dataset.exam_json_edit_url;
-      type = document.getElementById("button-select-add-exam").dataset.type;
+      let post_url = document.getElementById("button-select-add-exam").dataset.exam_json_edit_url;
+      let type = document.getElementById("button-select-add-exam").dataset.type;
       $.ajax({
         url: post_url,
         data: {