diff --git a/dataflow_neuro/cell_lib_async.act b/dataflow_neuro/cell_lib_async.act
index 972d578..8bf000f 100644
--- a/dataflow_neuro/cell_lib_async.act
+++ b/dataflow_neuro/cell_lib_async.act
@@ -29,7 +29,7 @@ namespace tmpl {
         export defcell KEEP (bool y; bool vdd, vss) {
             bool _y;
              prs{
-                 y => _y-
+                 // y => _y-
             //     [weak=1] _y -> y-
             //     [weak=1] ~_y -> y+