diff --git a/dataflow_neuro/treegates.act b/dataflow_neuro/treegates.act
index 032bdbe..11af1c9 100644
--- a/dataflow_neuro/treegates.act
+++ b/dataflow_neuro/treegates.act
@@ -433,13 +433,13 @@ defproc sigbuf (bool? in; bool! out[N]; power supply)
     BUF_X6 buf6 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
    [] N >= 19 & N <= 29 -> 
     BUF_X8 buf8 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
-   [] N >= 30 -> 
+   [] N >= 30 & N<= 48-> 
     BUF_X12 buf12 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
    [] N >= 49 & N <= 64 -> 
     BUF_X16 buf16 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
    [] N >= 65 & N <= 96 -> 
     BUF_X24 buf24 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
-   [] N >= 97 & N <=128 -> 
+   [] N >= 97 -> 
     BUF_X32 buf32 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);
   //  [] N >= 129 & N <=192 -> 
   //   BUF_X48 buf48 (.a = in, .y = out[0], .vdd = supply.vdd, .vss = supply.vss);