diff --git a/source/assets/javascripts/all.js b/source/assets/javascripts/all.js
index bec14c6..e84aec9 100644
--- a/source/assets/javascripts/all.js
+++ b/source/assets/javascripts/all.js
@@ -21,7 +21,7 @@ document.addEventListener("DOMContentLoaded", function(){
     paragraphs = [];
     paragraphs.push(lastParagraph);
 
-    while (lastParagraph.nextElementSibling.tagName == "P") {
+    while (lastParagraph.nextElementSibling && lastParagraph.nextElementSibling.tagName == "P") {
       lastParagraph = lastParagraph.nextElementSibling;
       paragraphs.push(lastParagraph)
     }