diff --git a/fpga/src/main/scala/arty/TestHarness.scala b/fpga/src/main/scala/arty/TestHarness.scala
index fdb91a47..af9462d1 100644
--- a/fpga/src/main/scala/arty/TestHarness.scala
+++ b/fpga/src/main/scala/arty/TestHarness.scala
@@ -17,7 +17,7 @@ class ArtyFPGATestHarness(override implicit val p: Parameters) extends ArtyShell
 
   // Convert harness resets from Bool to Reset type.
   val hReset = Wire(Reset())
-  hReset := ck_rst
+  hReset := ~ck_rst
 
   val dReset = Wire(AsyncReset())
   dReset := reset_core.asAsyncReset