diff --git a/_locales/cs/messages.json b/_locales/cs/messages.json
index a5fafa75..12d3ed65 100644
--- a/_locales/cs/messages.json
+++ b/_locales/cs/messages.json
@@ -328,7 +328,7 @@
         "description": "The result then looks like this:"
     },
     "helpHtmlFilterWhyTitle": {
-        "message": "",
+        "message": "Proč je nutné odstranit atributy crossorigin a integrity?",
         "description": "Why is it necessary to remove crossorigin and integrity attributes?"
     },
     "helpHtmlFilterCrossorigin": {