diff --git a/Tools/python/split_layers.py b/Tools/python/split_layers.py
index 584d8f7b54e2f21f4d6cfd7b4e0c54f38b109972..401f1e94017ad559a888f82e4c4ff4fe8fb56d2f 100755
--- a/Tools/python/split_layers.py
+++ b/Tools/python/split_layers.py
@@ -4,9 +4,6 @@ import sys
 import os
 import gdspy
 
-import multiprocessing
-from joblib import Parallel, delayed
-
 orig_box_width=10.
 orig_box_spacing=10.