diff --git a/des/sim/vhdl/tb_des.tcl b/des/sim/vhdl/tb_des.tcl
index ffdeba8..a1e3233 100644
--- a/des/sim/vhdl/tb_des.tcl
+++ b/des/sim/vhdl/tb_des.tcl
@@ -2,9 +2,11 @@ set signals [list]
 lappend signals "top.tb_des.s_reset"
 lappend signals "top.tb_des.s_clk"
 lappend signals "top.tb_des.s_validin"
+lappend signals "top.tb_des.s_acceptout"
 lappend signals "top.tb_des.s_mode"
 lappend signals "top.tb_des.s_key"
 lappend signals "top.tb_des.s_datain"
 lappend signals "top.tb_des.s_validout"
+lappend signals "top.tb_des.s_acceptin"
 lappend signals "top.tb_des.s_dataout"
 set num_added [ gtkwave::addSignalsFromList $signals ]