diff --git a/packages/file-handling/src/file-source.js b/packages/file-handling/src/file-source.js
index ebecd467629e6c76e3d6349034cbcef0498ca265..828eb6852663bb250a6c780b0d6c23f7cd748a1b 100644
--- a/packages/file-handling/src/file-source.js
+++ b/packages/file-handling/src/file-source.js
@@ -234,7 +234,9 @@ export class FileSource extends ScopedElementsMixin(DBPLitElement) {
 
     disconnectedCallback() {
         // remove event listeners
-        window.removeEventListener('beforeunload', this._onReceiveBeforeUnload);
+
+        //We doesn't want to deregister this event, because we want to use this event over activities
+        //window.removeEventListener('beforeunload', this._onReceiveBeforeUnload);
 
         super.disconnectedCallback();
     }