diff --git a/Labs/11. Interrupt integration/tb_irq_unit.sv b/Labs/11. Interrupt integration/tb_irq_unit.sv
index c58bcff7..40dc1822 100644
--- a/Labs/11. Interrupt integration/tb_irq_unit.sv	
+++ b/Labs/11. Interrupt integration/tb_irq_unit.sv	
@@ -42,6 +42,7 @@ module tb_irq_unit();
           @(posedge clk);
         end
         unit.irq_req = 0;
+        repeat(20)@(posedge clk);
         $display("\n The test is over \n See the internal signals of the module on the waveform \n");
         $finish;
     end