diff --git a/source b/source
index 5a9ffef8833..eda4da27525 100644
--- a/source
+++ b/source
@@ -142954,7 +142954,7 @@ interface <dfn interface>External</dfn> {
           "<code data-x="attr-button-command-hide-popover">hide-popover</code>";
           "<code data-x="attr-button-command-close">close</code>";
           "<code data-x="attr-button-command-show-modal">show-modal</code>";
-          a <code data-x="attr-button-command-custom">custom command keyword</code>
+          a <span data-x="attr-button-command-custom">custom command keyword</span>
     <tr>
      <th> <code data-x="">commandfor</code>
      <td> <code data-x="attr-button-commandfor">button</code>