diff --git a/pyqtgraph/flowchart/Flowchart.py b/pyqtgraph/flowchart/Flowchart.py
index 7b8cda33..ab5f4a82 100644
--- a/pyqtgraph/flowchart/Flowchart.py
+++ b/pyqtgraph/flowchart/Flowchart.py
@@ -836,7 +836,7 @@ class FlowchartWidget(dockarea.DockArea):
                     act.pos = pos
         self.nodeMenu = QtGui.QMenu()
         self.subMenus = []       
-        buildSubMenu(library.getNodeTree(), self.nodeMenu, self.subMenus, pos=pos)
+        buildSubMenu(self.chart.library.getNodeTree(), self.nodeMenu, self.subMenus, pos=pos)
         self.nodeMenu.triggered.connect(self.nodeMenuTriggered)
         return self.nodeMenu