diff --git a/icache_tb.vhdl b/icache_tb.vhdl
index a82912e..a50cabe 100644
--- a/icache_tb.vhdl
+++ b/icache_tb.vhdl
@@ -68,6 +68,7 @@ begin
     begin
         i_out.req <= '0';
         i_out.nia <= (others => '0');
+	i_out.stop_mark <= '0';
 
         wait for 4*clk_period;