diff --git a/pglab/DatabaseWindow.cpp b/pglab/DatabaseWindow.cpp
index 4467836..fd14080 100644
--- a/pglab/DatabaseWindow.cpp
+++ b/pglab/DatabaseWindow.cpp
@@ -389,7 +389,7 @@ void DatabaseWindow::on_actionCopy_triggered()
 	}
 	else {
 		const QMetaObject *meta = w->metaObject();
-		int i = meta->indexOfSlot("copy");
+		int i = meta->indexOfMethod("copy()");
 		if (i != -1) {
 			QMetaMethod method = meta->method(i);
 			method.invoke(w, Qt::AutoConnection);