diff --git a/show.html b/show.html
index f9d7442..f387fe5 100644
--- a/show.html
+++ b/show.html
@@ -67,9 +67,9 @@
     let formattedDate = 'Unknown date'
     const conversation = params['conversation']
 
-    const m = url.match(/^(https?:)?\/\/(www\.)?twitter\.com\/([^/]+)\//)
+    const m = url.match(/^(?:https?:)?\/\/(?:www\.)?(?:twitter|x)\.com\/([^/]+)\//)
     if (m && !authorUsername) {
-      authorUsername = m[3]
+      authorUsername = m[1]
     }
 
     if (authorUsername && authorUsername.substr(0, 1) !== '@') {