diff --git a/routes/_utils/replaceEmoji.js b/routes/_utils/replaceEmoji.js
index b27f3c0..1abdf42 100644
--- a/routes/_utils/replaceEmoji.js
+++ b/routes/_utils/replaceEmoji.js
@@ -9,7 +9,7 @@ export function replaceEmoji (string, replacer) {
 
   function safeReplacer (substring) {
     // emoji regex matches digits and pound sign https://git.io/fpl6J
-    if (substring.match(/^[0-9#*]+$/)) {
+    if (substring.match(/^[0-9#*™®]+$/)) {
       return substring
     }
     return replacer(substring)
diff --git a/tests/unit/test-emoji.js b/tests/unit/test-emoji.js
index d827120..8da04b2 100644
--- a/tests/unit/test-emoji.js
+++ b/tests/unit/test-emoji.js
@@ -67,8 +67,8 @@ describe('test-emoji.js', function () {
       `it's over #9000`
     )
     assert.strictEqual(
-      replaceEmoji(`woot !@#$%^&*()~` + '`' + `{[}]:;"'<,>.?/£`, replacer),
-      `woot !@#$%^&*()~` + '`' + `{[}]:;"'<,>.?/£`
+      replaceEmoji(`woot !@#$%^&*()~` + '`' + `{[}]:;"'<,>.?/£™℠®`, replacer),
+      `woot !@#$%^&*()~` + '`' + `{[}]:;"'<,>.?/£™℠®`
     )
   })