diff --git a/examples/gowin/demo.v b/examples/gowin/demo.v
index 3cb782fa7..f5c001893 100644
--- a/examples/gowin/demo.v
+++ b/examples/gowin/demo.v
@@ -1,6 +1,7 @@
 module demo (
 	input clk,
 	output [15:0] leds
+	//,output unused
 );
 	localparam PRESCALE = 20;
 	reg [PRESCALE+3:0] counter = 0;