diff --git a/packages/file-handling/src/clipboard.js b/packages/file-handling/src/clipboard.js
index 078f03fd90fa552729f8bb2e1dfecc6c4f792403..abb44e32bd68eaceed7d1ae5815b7e9f0c43ca67 100644
--- a/packages/file-handling/src/clipboard.js
+++ b/packages/file-handling/src/clipboard.js
@@ -459,7 +459,7 @@ export class Clipboard extends ScopedElementsMixin(AdapterLitElement) {
     openFilesink() {
         const fileSink = this._("#file-source");
         if (fileSink) {
-            this._("#file-source").setAttribute(^^"dialog-open", "");
+            this._("#file-source").setAttribute("dialog-open", "");
         }
     }