diff --git a/src/HtmlUtils.tsx b/src/HtmlUtils.tsx
index af5d2b3019..27556a4012 100644
--- a/src/HtmlUtils.tsx
+++ b/src/HtmlUtils.tsx
@@ -57,7 +57,10 @@ const BIGEMOJI_REGEX = new RegExp(`^(${EMOJIBASE_REGEX.source})+$`, 'i');
 
 const COLOR_REGEX = /^#[0-9a-fA-F]{6}$/;
 
-export const PERMITTED_URL_SCHEMES = ['http', 'https', 'ftp', 'mailto', 'magnet', 'matrix'];
+export const PERMITTED_URL_SCHEMES = ["bitcoin", "ftp", "geo", "http", "https", "im", "irc",
+                                     "ircs", "magnet", "mailto", "matrix", "mms", "news",
+                                     "nntp", "openpgp4fpr", "sip", "sftp", "sms", "smsto",
+                                     "ssh", "tel", "urn", "webcal", "wtai", "xmpp"];
 
 const MEDIA_API_MXC_REGEX = /\/_matrix\/media\/r0\/(?:download|thumbnail)\/(.+?)\/(.+?)(?:[?/]|$)/;