diff --git a/himbaechel/uarch/gatemate/pack_mult.cc b/himbaechel/uarch/gatemate/pack_mult.cc
index 8a843eb3..03ae85b5 100644
--- a/himbaechel/uarch/gatemate/pack_mult.cc
+++ b/himbaechel/uarch/gatemate/pack_mult.cc
@@ -476,6 +476,9 @@ void GateMatePacker::pack_mult()
 
             NetInfo *comb2_conn = ctx->createNet(ctx->idf("%s$multf%c$comb2", name.c_str(ctx), is_even_x ? 'a' : 'b'));
             multfab_upper->connectPort(id_OUT, comb2_conn);
+            multfab_lower->ports[id_COMBIN].name = id_COMBIN;
+            multfab_lower->ports[id_COMBIN].type = PORT_IN;
+            multfab_lower->connectPort(id_COMBIN, comb2_conn);
             multfab_comp->connectPort(id_COMB2, comb2_conn);
 
             NetInfo *comp_out = ctx->createNet(ctx->idf("%s$multf%c$comp_out", name.c_str(ctx), is_even_x ? 'a' : 'b'));