diff --git a/homepage/knowledge/cat.html b/homepage/knowledge/cat.html
index 81d5522..73e0cd8 100644
--- a/homepage/knowledge/cat.html
+++ b/homepage/knowledge/cat.html
@@ -15,11 +15,11 @@
 <SCRIPT SRC="/sheets.js"  TYPE="application/javascript"></SCRIPT>
 <SCRIPT TYPE="application/javascript">window.onload = window.initializesheets;</SCRIPT>
 <SCRIPT TYPE="application/javascript">
-var window.load_c_highlighting = function(){
+window.load_c_highlighting = function(){
 	var script = document.createElement('script');
 	script.src = "https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.0.1/languages/c.min.js";
 };
-var window.load_shell_highlighting = function(){
+window.load_shell_highlighting = function(){
 	var script = document.createElement('script');
 	script.src = "https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.0.1/languages/shell.min.js";
 };