diff --git a/multi-monitors-add-on@spin83/mmpanel.js b/multi-monitors-add-on@spin83/mmpanel.js
index 521a79d..d08c019 100644
--- a/multi-monitors-add-on@spin83/mmpanel.js
+++ b/multi-monitors-add-on@spin83/mmpanel.js
@@ -540,6 +540,23 @@ var MultiMonitorsPanel = (() => {
 	        }
 	        return indicator;
 	    }
+
+	    _getDraggableWindowForPosition(stageX) {
+	        let workspaceManager = global.workspace_manager;
+	        let workspace = workspaceManager.get_active_workspace();
+	        let allWindowsByStacking = global.display.sort_windows_by_stacking(
+	            workspace.list_windows()
+	        ).reverse();
+	
+	        return allWindowsByStacking.find(metaWindow => {
+	            let rect = metaWindow.get_frame_rect();
+	            return metaWindow.get_monitor() == this.monitorIndex &&
+	                   metaWindow.showing_on_its_workspace() &&
+	                   metaWindow.get_window_type() != Meta.WindowType.DESKTOP &&
+	                   metaWindow.maximized_vertically &&
+	                   stageX > rect.x && stageX < rect.x + rect.width;
+	        });
+		}
 	};
 	MultiMonitors.copyClass(Panel.Panel, MultiMonitorsPanel);
 	return GObject.registerClass(MultiMonitorsPanel);