diff --git a/compiler/gdsMill/gdsMill/vlsiLayout.py b/compiler/gdsMill/gdsMill/vlsiLayout.py
index 06e4cc66..2592d251 100644
--- a/compiler/gdsMill/gdsMill/vlsiLayout.py
+++ b/compiler/gdsMill/gdsMill/vlsiLayout.py
@@ -3,7 +3,7 @@ from datetime import *
 import numpy as np
 import math
 import debug
-from tech import use_purpose, no_pin_shape
+from tech import use_purpose
 
 class VlsiLayout:
     """Class represent a hierarchical layout"""