diff --git a/apps/ssb/tf-compose.js b/apps/ssb/tf-compose.js
index fbeab91a..26f589c2 100644
--- a/apps/ssb/tf-compose.js
+++ b/apps/ssb/tf-compose.js
@@ -37,6 +37,11 @@ class TfComposeElement extends LitElement {
 		for (let match of text.matchAll(/\[([^\[]+)]\(([@&%][^\)]+)/g)) {
 			let name = match[1];
 			let link = match[2];
+			if ((link.startsWith('&') && link.length != 52) ||
+				(link.startsWith('@') && link.length != 53) ||
+				(link.startsWith('%') && link.length != 52)) {
+				continue;
+			}
 			let balance = 0;
 			let bracket_end = match.index + match[1].length + '[]'.length - 1;
 			for (let i = bracket_end; i >= 0; i--) {