diff --git a/tests/verific/clocking.ys b/tests/verific/clocking.ys
index 6bf7420a5..748c251d4 100644
--- a/tests/verific/clocking.ys
+++ b/tests/verific/clocking.ys
@@ -1,4 +1,4 @@
-read -sv <<EOT
+read -formal <<EOT
 module test(input foo);
 always @(*) assert(foo);
 endmodule