diff --git a/ts/mathjax/index.ts b/ts/mathjax/index.ts
index 28a3a1d53..bcfb2b6a0 100644
--- a/ts/mathjax/index.ts
+++ b/ts/mathjax/index.ts
@@ -17,6 +17,7 @@ window.MathJax = {
         processRefs: false,
         packages: {
             "[+]": packages,
+            "[-]": ["textmacros"],
         },
     },
     loader: {