diff --git a/plugins/splitwindow.c b/plugins/splitwindow.c
index 4f0dec3..c6b91e4 100644
--- a/plugins/splitwindow.c
+++ b/plugins/splitwindow.c
@@ -247,13 +247,15 @@ static void on_doc_menu_item_clicked(gpointer item, GeanyDocument *doc)
 }


-static void on_doc_menu_show(GtkMenu *menu)
+static gboolean on_doc_menu_show(GtkMenu *menu, GdkEvent *event, gpointer unused)
 {
    /* clear the old menu items */
    gtk_container_foreach(GTK_CONTAINER(menu), (GtkCallback) gtk_widget_destroy, NULL);

    ui_menu_add_document_items(menu, edit_window.editor->document,
        G_CALLBACK(on_doc_menu_item_clicked));
+
+   return FALSE;
 }


@@ -275,7 +277,7 @@ static GtkWidget *create_toolbar(void)

    item = gtk_menu_new();
    gtk_menu_tool_button_set_menu(GTK_MENU_TOOL_BUTTON(tool_item), item);
-   g_signal_connect(item, "show", G_CALLBACK(on_doc_menu_show), NULL);
+   g_signal_connect(item, "map-event", G_CALLBACK(on_doc_menu_show), NULL);

    tool_item = gtk_tool_item_new();
    gtk_tool_item_set_expand(tool_item, TRUE);