diff --git a/PyFlow/UI/Views/NodeBox.py b/PyFlow/UI/Views/NodeBox.py
index aacba29d..bd963877 100644
--- a/PyFlow/UI/Views/NodeBox.py
+++ b/PyFlow/UI/Views/NodeBox.py
@@ -544,7 +544,7 @@ def expandCategory(self):
             item = self.treeWidget.topLevelItem(i)
             if item.text(0) in self.treeWidget.categoryPaths:
                 index = self.treeWidget.indexFromItem(item)
-                self.treeWidget.setExpanded(index, True)
+                self.treeWidget.expandRecursively(index)
 
     def leTextChanged(self):
         if self.lineEdit.text() == "":