diff --git a/src/services/html_sanitizer.ts b/src/services/html_sanitizer.ts
index 71f2d7806..d3d48eea1 100644
--- a/src/services/html_sanitizer.ts
+++ b/src/services/html_sanitizer.ts
@@ -53,7 +53,7 @@ function sanitize(dirtyHtml: string) {
         allowedTags,
         allowedAttributes: {
             "*": [ 'class', 'style', 'title', 'src', 'href', 'hash', 'disabled', 'align', 'alt', 'center', 'data-*' ],
-            "input": [ "type" ]
+            "input": [ "type", "checked" ]
         },
         allowedSchemes: [
             'http', 'https', 'ftp', 'ftps', 'mailto', 'data', 'evernote', 'file', 'facetime', 'irc', 'gemini', 'git',