diff --git a/Labs/12. Daisy chain/lab_12.tb_daisy_chain.sv b/Labs/12. Daisy chain/lab_12.tb_daisy_chain.sv
index 6ded324..5400a24 100644
--- a/Labs/12. Daisy chain/lab_12.tb_daisy_chain.sv	
+++ b/Labs/12. Daisy chain/lab_12.tb_daisy_chain.sv	
@@ -82,11 +82,11 @@ irq_o_is_not_0: assert property (
 irq_cause_o_mcause: assert property (
   @(posedge clk_i) disable iff ( rst_i )
   irq_o |-> $onehot0(irq_cause_o[19:4])
-)else $error("error value on irq_cause_o: %08h, should be onehot", $sampled(irq_cause_o[20:5]));
+)else $error("error value on irq_cause_o: %08h, should be onehot", $sampled(irq_cause_o[19:4]));
 
 irq_cause_o_borders: assert property (
   @(posedge clk_i) disable iff ( rst_i )
   irq_o |-> (irq_cause_o[31:20] === 12'h800) && (irq_cause_o[3:0] == 4'h0)
 )else $error("irq_cause_o borders are incorrect: %08h", $sampled(irq_cause_o));
 
-endmodule
\ No newline at end of file
+endmodule