diff --git a/clean.sh b/clean.sh
new file mode 100755
index 0000000..517c17e
--- /dev/null
+++ b/clean.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+rm -- *.vcd
+
+rm -rf obj_dir
diff --git a/overture.sv b/overture.sv
index 81e82e3..c93cc81 100644
--- a/overture.sv
+++ b/overture.sv
@@ -7,8 +7,8 @@ module overture(
 	output reg [7:0] out;
 
 	always@(*) begin
-		foreach (input[i]) begin
-			out[i] = !in[i]
+		foreach (in[i]) begin
+			out[i] = !in[i];
 		end
 	end
 endmodule