diff --git a/compiler/router/router.py b/compiler/router/router.py
index 8cc8f5d8..0e77f939 100644
--- a/compiler/router/router.py
+++ b/compiler/router/router.py
@@ -422,12 +422,8 @@ class router(router_tech):
         """
         This function clears a given pin and all of its components from being blockages.
         """
-        # This should be a superset of the grids...
         blockage_grids = {y for x in self.pin_groups[pin_name] for y in x.blockages}
         self.set_blockages(blockage_grids, False)
-        # But do the grids just in case
-        blockage_grids = {y for x in self.pin_groups[pin_name] for y in x.grids}
-        self.set_blockages(blockage_grids, False)
         
     def clear_all_blockages(self):
         """