diff --git a/module/applications/api/application.mjs b/module/applications/api/application.mjs
index 75ba12af0d..c0cf197d83 100644
--- a/module/applications/api/application.mjs
+++ b/module/applications/api/application.mjs
@@ -112,11 +112,11 @@ export default class Application5e extends HandlebarsApplicationMixin(Applicatio
    * Disable form fields that aren't marked with the `interface-only` class.
    */
   _disableFields() {
-    const tags = [
+    const selector = `.window-content :is(${[
       "INPUT", "SELECT", "TEXTAREA", "BUTTON", "DND5E-CHECKBOX", "COLOR-PICKER", "DOCUMENT-TAGS",
       "FILE-PICKER", "HUE-SLIDER", "MULTI-SELECT", "PROSE-MIRROR", "RANGE-PICKER", "STRING-TAGS"
-    ];
-    for ( const element of this.element.querySelectorAll(`:is(${tags.join(", ")}):not(.interface-only)`) ) {
+    ].join(", ")}):not(.interface-only)`;
+    for ( const element of this.element.querySelectorAll(selector) ) {
       if ( element.tagName === "TEXTAREA" ) element.readOnly = true;
       else element.disabled = true;
     }