diff --git a/chip_design_tb_working.sv b/chip_design_tb_working.sv
index 1fd96bc..5d39871 100644
--- a/chip_design_tb_working.sv
+++ b/chip_design_tb_working.sv
@@ -1,8 +1,8 @@
 // Code your testbench here
 // or browse Examples
 module chip_design_tb #(
-  parameter int N_x = 8,
-  parameter int N_y = 8,
+  parameter int N_x = 8, // full maze size
+  parameter int N_y = 8, // full maze size
   parameter int DELAY_NS   = 50
 );