diff --git a/Labs/10. Interrupt subsystem/lab_10.tb_csr.sv b/Labs/10. Interrupt subsystem/lab_10.tb_csr.sv
index a3c71af..85e54b6 100644
--- a/Labs/10. Interrupt subsystem/lab_10.tb_csr.sv	
+++ b/Labs/10. Interrupt subsystem/lab_10.tb_csr.sv	
@@ -30,7 +30,7 @@ module lab_10_tb_csr();
 
 import csr_pkg::*;
 
-csr_controller dut(.*);
+csr_controller DUT(.*);
 
 always #5 clk_i <= ~clk_i;