diff --git a/tests/simple_abc9/.gitignore b/tests/simple_abc9/.gitignore
index 598951333..2355aea29 100644
--- a/tests/simple_abc9/.gitignore
+++ b/tests/simple_abc9/.gitignore
@@ -1,3 +1,4 @@
 *.v
+*.sv
 *.log
 *.out