diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 6eb70e759..a8f7f94e6 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -889,7 +889,7 @@
     "description": "Header of 'Filter issues' section in Support pane"
   },
   "supportS3P1": {
-    "message": "Report filter issues with specific websites to <span data-url=\"https://github.com/uBlockOrigin/uAssets/issues?q=is%3Aissue\"><code>uBlockOrigin/uAssets</code> issue tracker</span>. Requires a GitHub account.",
+    "message": "Report filter issues with specific websites to <span data-url=\"https://github.com/uBlockOrigin/uAssets/issues?q=is%3Aissue\"><code>uBlockOrigin/uAssets</code> issue tracker</span>. <u>Requires a GitHub account.</u>",
     "description": "First paragraph of 'Filter issues' section in Support pane"
   },
   "supportS3P2": {
@@ -905,7 +905,7 @@
     "description": "Header of 'Bug report' section in Support pane"
   },
   "supportS4P1": {
-    "message": "Report issues with uBlock Origin itself to <span data-url=\"https://github.com/uBlockOrigin/uBlock-issues/issues?q=is%3Aissue\"><code>uBlockOrigin/uBlock-issue</code> issue tracker</span>. Requires a GitHub account.",
+    "message": "Report issues with uBlock Origin itself to <span data-url=\"https://github.com/uBlockOrigin/uBlock-issues/issues?q=is%3Aissue\"><code>uBlockOrigin/uBlock-issue</code> issue tracker</span>. <u>Requires a GitHub account.</u>",
     "description": "First paragraph of 'Bug report' section in Support pane"
   },
   "supportS5H": {
diff --git a/src/js/i18n.js b/src/js/i18n.js
index 59250ac2f..b967da464 100644
--- a/src/js/i18n.js
+++ b/src/js/i18n.js
@@ -46,6 +46,7 @@ const allowedTags = new Set([
     'em',
     'i',
     'span',
+    'u',
 ]);
 
 const expandHtmlEntities = (( ) => {