diff --git a/tools/batools/spinoff/_context.py b/tools/batools/spinoff/_context.py
index d61b7486..c516721c 100644
--- a/tools/batools/spinoff/_context.py
+++ b/tools/batools/spinoff/_context.py
@@ -1563,7 +1563,7 @@ class SpinoffContext:
                 os.remove(delete_file_name)
 
     def _is_project_file(self, path: str) -> bool:
-        if path.startswith('tools/') or path.startswith('src/external'):
+        if path.startswith('tools/') or path.startswith('src/external') or path.startswith('src/assets/sphinx'):
             return False
         bname = os.path.basename(path)
         return (