diff --git a/compiler/base/custom_cell_properties.py b/compiler/base/custom_cell_properties.py
index c592665a..8530ee64 100644
--- a/compiler/base/custom_cell_properties.py
+++ b/compiler/base/custom_cell_properties.py
@@ -50,7 +50,6 @@ class _pgate:
 class _bitcell:
     def __init__(self, mirror, cell_s8_6t, cell_6t, cell_1rw1r, cell_1w1r):
         self.mirror = mirror
-        self._s8_6t = cell_s8_6t
         self._6t = cell_6t
         self._1rw1r = cell_1rw1r
         self._1w1r = cell_1w1r
@@ -58,10 +57,6 @@ class _bitcell:
     def _default():
         axis = _mirror_axis(True, False)
 
-        cell_s8_6t = _cell({'bl': 'bl',
-                            'br': 'br',
-                            'wl': 'wl'})
-
         cell_6t = _cell({'bl': 'bl',
                          'br': 'br',
                          'wl': 'wl'})