diff --git a/src/e3/fs.py b/src/e3/fs.py
index 3f8ae8ee..ad566cff 100644
--- a/src/e3/fs.py
+++ b/src/e3/fs.py
@@ -779,7 +779,7 @@ def copystat(src: FileInfo, dst: FileInfo) -> None:
         else:
             if hasattr(os, "utime"):
                 if preserve_timestamps:
-                    os.utime(dst.path, (src.stat.st_atime, src.stat.st_mtime))
+                    os.utime(dst.path, ns=(src.stat.st_atime_ns, src.stat.st_mtime_ns))
                 else:
                     os.utime(dst.path, None)
             if hasattr(os, "chmod"):