diff --git a/modules/gpad/RCanvasPainter.mjs b/modules/gpad/RCanvasPainter.mjs
index 0fa79a1b3..2a2fc1b44 100644
--- a/modules/gpad/RCanvasPainter.mjs
+++ b/modules/gpad/RCanvasPainter.mjs
@@ -9,7 +9,6 @@ import { RAxisPainter } from './RAxisPainter.mjs';
 import { RFramePainter } from './RFramePainter.mjs';
 import { RPadPainter } from './RPadPainter.mjs';
 import { addDragHandler } from './TFramePainter.mjs';
-import { WebWindowHandle } from '../webwindow.mjs';
 
 
 /**
@@ -303,7 +302,7 @@ class RCanvasPainter extends RPadPainter {
             if (!isFunc(this.showUI5Panel))
                handle.send(reply + 'false');
              else {
-               const conn = new WebWindowHandle(handle.kind);
+               const conn = handle.createNewInstance();
 
                // set interim receiver until first message arrives
                conn.setReceiver({
diff --git a/modules/webwindow.mjs b/modules/webwindow.mjs
index 57f673e2f..569026296 100644
--- a/modules/webwindow.mjs
+++ b/modules/webwindow.mjs
@@ -810,6 +810,12 @@ class WebWindowHandle {
       }
    }
 
+   /** @summary Create new instance of same kind
+    * @private */
+   createNewInstance() {
+      return new WebWindowHandle(this.kind);
+   }
+
 } // class WebWindowHandle