diff --git a/hw/application_fpga/core/tk1/tb/tb_tk1.v b/hw/application_fpga/core/tk1/tb/tb_tk1.v
index 2344849..148e234 100644
--- a/hw/application_fpga/core/tk1/tb/tb_tk1.v
+++ b/hw/application_fpga/core/tk1/tb/tb_tk1.v
@@ -301,7 +301,7 @@ module tb_tk1 ();
       tb_write_data = word;
       tb_cs = 1;
       tb_we = 1;
-      #(2 * CLK_PERIOD);
+      #(CLK_PERIOD);
       tb_cs = 0;
       tb_we = 0;
     end