diff --git a/blender_asset_tracer/blendfile/dna.py b/blender_asset_tracer/blendfile/dna.py
index ce40194..21f60e4 100644
--- a/blender_asset_tracer/blendfile/dna.py
+++ b/blender_asset_tracer/blendfile/dna.py
@@ -177,7 +177,7 @@ class Struct:
                 index = 0
         else:
             name = path
-            name_tail = None
+            name_tail = ()
             index = 0
 
         if not isinstance(name, bytes):