diff --git a/manuskript/ui/views/plotTreeView.py b/manuskript/ui/views/plotTreeView.py
index b325dc86..97c46fc8 100644
--- a/manuskript/ui/views/plotTreeView.py
+++ b/manuskript/ui/views/plotTreeView.py
@@ -200,9 +200,9 @@ class plotTreeView(QTreeWidget):
 
     def mouseDoubleClickEvent(self, event):
         item = self.currentItem()
+        if not item:
+            return
+        
         # Catching double clicks to forbid collapsing of toplevel items
-        try:
-            if item.parent():
-                QTreeWidget.mouseDoubleClickEvent(self, event)
-        except AttributeError:
-            pass
+        if item.parent():
+            QTreeWidget.mouseDoubleClickEvent(self, event)