diff --git a/technology/scn4m_subm/tech/setup.tcl b/technology/scn4m_subm/tech/setup.tcl
index 09bbea27..40de5ac1 100644
--- a/technology/scn4m_subm/tech/setup.tcl
+++ b/technology/scn4m_subm/tech/setup.tcl
@@ -6,6 +6,9 @@ equate class {-circuit1 pfet} {-circuit2 p}
 flatten class {-circuit1 dummy_cell_6t}
 flatten class {-circuit1 dummy_cell_1rw_1r}
 flatten class {-circuit1 dummy_cell_1w_1r}
+flatten class {-circuit1 dummy_pbitcell}
+flatten class {-circuit1 dummy_pbitcell_0}
+flatten class {-circuit1 dummy_pbitcell_1}
 flatten class {-circuit1 pbitcell}
 flatten class {-circuit1 pbitcell_0}
 flatten class {-circuit1 pbitcell_1}