diff --git a/src/modules/fedimbed.js b/src/modules/fedimbed.js
index 7c5a036..41ff1ad 100644
--- a/src/modules/fedimbed.js
+++ b/src/modules/fedimbed.js
@@ -118,7 +118,8 @@ async function processUrl(msg, url) {
     if (PATH_REGEX.pleroma2.test(urlObj.pathname)) {
       redirUrl = url.replace("notice", "api/v1/statuses");
     } else if (PATH_REGEX.mastodon.test(urlObj.pathname)) {
-      redirUrl = url.replace(/^\/@(.+?)\/(\d+)\/?/, "/api/v1/statuses/$2");
+      const postId = url.match(/^\/@(.+?)\/(\d+)\/?/)?.[2];
+      redirUrl = urlObj.origin + "/api/v1/statuses/" + postId;
     } else if (PATH_REGEX.mastodon2.test(urlObj.pathname)) {
       redirUrl = url.replace(/^\/(.+?)\/statuses/, "/api/v1/statuses");
     } else {