diff --git a/src/main/scala/groundtest/TestHarness.scala b/src/main/scala/groundtest/TestHarness.scala
index 8853c513..dbabf0da 100644
--- a/src/main/scala/groundtest/TestHarness.scala
+++ b/src/main/scala/groundtest/TestHarness.scala
@@ -4,4 +4,4 @@ import Chisel._
 import cde.Parameters
 
 // !!! TODO: Replace with a groundtest-specific test harness
-class TestHarness(implicit p: Parameters) extends rocketchip.TestHarness()(p)
+class TestHarness(implicit p: Parameters) extends rocketchip.TestHarness(p)