diff --git a/openpype/hosts/nuke/plugins/publish/extract_thumbnail.py b/openpype/hosts/nuke/plugins/publish/extract_thumbnail.py
index 34f4b4e8cf..21eefda249 100644
--- a/openpype/hosts/nuke/plugins/publish/extract_thumbnail.py
+++ b/openpype/hosts/nuke/plugins/publish/extract_thumbnail.py
@@ -30,7 +30,7 @@ class ExtractThumbnail(publish.Extractor):
     bake_viewer_process = True
     bake_viewer_input_process = True
     nodes = {}
-    reposition_nodes = []
+    reposition_nodes = None
 
     def process(self, instance):
         if instance.data.get("farm"):