diff --git a/static/js/libs/katex.js b/static/js/libs/katex.js
index 6cf3147..e89ee49 100644
--- a/static/js/libs/katex.js
+++ b/static/js/libs/katex.js
@@ -13,7 +13,8 @@ window.addEventListener("load", () => {
       u: "mu",
     })
   )[Symbol.iterator]()) {
-    macros[`\\${item[0]}`] = `\\${item[1]}`;
+    const bs = "\\";
+    macros[`${bs}${item[0]}`] = `${bs}${item[1]}`;
   }
 
   const attribute = "data-math-style";