diff --git a/tests/simple_abc9/abc9.v b/tests/simple_abc9/abc9.v
index 596a52501..6bdd3bc32 100644
--- a/tests/simple_abc9/abc9.v
+++ b/tests/simple_abc9/abc9.v
@@ -288,3 +288,4 @@ endmodule
 module abc9_test033(input clk, d, output reg q1, q2);
 always @(posedge clk) q1 <= d;
 always @(posedge clk) q2 <= q1;
+endmodule