diff --git a/openpype/hosts/nuke/api/workio.py b/openpype/hosts/nuke/api/workio.py
index 68fcb0927f..65b86bf01b 100644
--- a/openpype/hosts/nuke/api/workio.py
+++ b/openpype/hosts/nuke/api/workio.py
@@ -2,11 +2,9 @@
 import os
 import nuke
 
-from openpype.pipeline import HOST_WORKFILE_EXTENSIONS
-
 
 def file_extensions():
-    return HOST_WORKFILE_EXTENSIONS["nuke"]
+    return [".nk"]
 
 
 def has_unsaved_changes():