diff --git a/src/main/scala/shell/Arty100TShell.scala b/src/main/scala/shell/Arty100TShell.scala
index 080eaa6..5cc3b93 100644
--- a/src/main/scala/shell/Arty100TShell.scala
+++ b/src/main/scala/shell/Arty100TShell.scala
@@ -94,6 +94,9 @@ class ExampleArty100TShell extends Arty100TShell {
 
     io.led := counter(28, 25)
 
+    io.jd_0 := false.B
+    io.jd_3 := false.B
+
     io.uart_rxd_out := io.uart_txd_in
   }
 }