diff --git a/anatomy/static/js/anatomy.js b/anatomy/static/js/anatomy.js
index 5464ae20..b8c32062 100644
--- a/anatomy/static/js/anatomy.js
+++ b/anatomy/static/js/anatomy.js
@@ -28,7 +28,7 @@ $(document).ready(function () {
       $(element).each(function () {
         let mark = classes[($.inArray(this.className, classes) + 1) % classes.length];
         this.className = mark
-        this.dataset.newmark = mark
+        this.dataset.newmark = mark.split(" ")[1]
       });
 
       prepAnswerData();
diff --git a/static/js/anatomy.js b/static/js/anatomy.js
index 5464ae20..b8c32062 100644
--- a/static/js/anatomy.js
+++ b/static/js/anatomy.js
@@ -28,7 +28,7 @@ $(document).ready(function () {
       $(element).each(function () {
         let mark = classes[($.inArray(this.className, classes) + 1) % classes.length];
         this.className = mark
-        this.dataset.newmark = mark
+        this.dataset.newmark = mark.split(" ")[1]
       });
 
       prepAnswerData();