diff --git a/technology/sky130/modules/sky130_dummy_array.py b/technology/sky130/modules/sky130_dummy_array.py
index 063d5a79..e1cb3dfd 100644
--- a/technology/sky130/modules/sky130_dummy_array.py
+++ b/technology/sky130/modules/sky130_dummy_array.py
@@ -54,6 +54,8 @@ class sky130_dummy_array(sky130_bitcell_base_array):
         self.add_mod(self.strap2)
         self.strap3 = factory.create(module_type="internal", version="wlstrapa")
         self.add_mod(self.strap3)
+        self.strap4 = factory.create(module_type="internal", version="wlstrapa_p")
+        self.add_mod(self.strap4)
         self.cell = factory.create(module_type=OPTS.bitcell, version="opt1")
 
     def create_instances(self):
@@ -79,9 +81,14 @@ class sky130_dummy_array(sky130_bitcell_base_array):
                 self.connect_inst(self.get_bitcell_pins(row, col))
                 if col != self.column_size - 1:
                     if alternate_strap:
-                        row_layout.append(self.strap2)
-                        self.add_inst(name="row_{}_col_{}_wlstrap".format(row, col),
-                                      mod=self.strap2)
+                        if col % 2:
+                            row_layout.append(self.strap4)
+                            self.add_inst(name="row_{}_col_{}_wlstrap".format(row, col),
+                                        mod=self.strap4) 
+                        else:
+                            row_layout.append(self.strap4)
+                            self.add_inst(name="row_{}_col_{}_wlstrap".format(row, col),
+                                        mod=self.strap4)
                         alternate_strap = 0
                     else:
                         if col % 2: