diff --git a/nw/gui/projtree.py b/nw/gui/projtree.py
index 938729a3..e1802a8b 100644
--- a/nw/gui/projtree.py
+++ b/nw/gui/projtree.py
@@ -714,9 +714,6 @@ class GuiProjectTree(QTreeWidget):
                 return
 
             tHandle = selItem.data(self.C_NAME, Qt.UserRole)
-            if tHandle is None:
-                return
-
             tItem = self.theProject.projTree[tHandle]
             if tItem is None:
                 return
diff --git a/nw/guimain.py b/nw/guimain.py
index 37042ca5..c03eceea 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -1317,9 +1317,6 @@ class GuiMain(QMainWindow):
         we open it. Otherwise, we do nothing.
         """
         tHandle = tItem.data(self.treeView.C_NAME, Qt.UserRole)
-        if tHandle is None:
-            return
-
         logger.verbose("User double clicked tree item with handle %s" % tHandle)
         nwItem = self.theProject.projTree[tHandle]
         if nwItem is not None: