diff --git a/dataflow_neuro/primitives.act b/dataflow_neuro/primitives.act
index ab3c8b5..0d86362 100644
--- a/dataflow_neuro/primitives.act
+++ b/dataflow_neuro/primitives.act
@@ -501,11 +501,12 @@ namespace tmpl {
             AND2_X1 and2(.a = _drop, .b = _in_vX, .vss = supply.vss, .vdd = supply.vdd);
             OR2_X1 or2(.a = out.a, .b = and2.y, .vss = supply.vss, .vdd = supply.vdd);
             A_2C_B_X1 ack_Cel(.c1 = or2.y, .c2 = _in_vX, .y = in.a);
-            _in_vX = in.v;
+            // _in_vX = in.v;
 
             // Sigbufs
             sigbuf<N*2> sb_dropB(.in = _dropB, .supply = supply);
-            sigbuf<N*2> sb_in_v(.in = _in_vX, .supply = supply);
+            sigbuf<N*2+1> sb_in_v(.in = _in_vX, .supply = supply);
+            sb_in_v.out[2*N] = in.v;
 
             AND3_X1 and_t[N];
             AND3_X1 and_f[N];