diff --git a/plugins/tiddlywiki/katex/styles.tid b/plugins/tiddlywiki/katex/styles.tid
index fb65aaec1..bda948e69 100644
--- a/plugins/tiddlywiki/katex/styles.tid
+++ b/plugins/tiddlywiki/katex/styles.tid
@@ -13,6 +13,12 @@ tags: [[$:/tags/Stylesheet]]
     text-rendering: auto;
 }
 
+/* Avoid TW5's max-width: 100% */
+
+.katex svg {
+  max-width: initial;
+}
+
 /* Override font URLs */
 
 @font-face {