diff --git a/src/main/scala/shell/xilinx/ML507Shell.scala b/src/main/scala/shell/xilinx/ML507Shell.scala
index f141e39..4a51bd4 100644
--- a/src/main/scala/shell/xilinx/ML507Shell.scala
+++ b/src/main/scala/shell/xilinx/ML507Shell.scala
@@ -72,20 +72,20 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   val sdio_dat             = IO(Analog(4.W))
 
   //Buttons
-  val btn_0                = IO(Analog(1.W))
-  val btn_1                = IO(Analog(1.W))
-  val btn_2                = IO(Analog(1.W))
-  val btn_3                = IO(Analog(1.W))
+  val btn_0                = IO(Input(Bool()))
+  val btn_1                = IO(Input(Bool()))
+  val btn_2                = IO(Input(Bool()))
+  val btn_3                = IO(Input(Bool()))
 
   //Sliding switches
-  val sw_0                 = IO(Analog(1.W))
-  val sw_1                 = IO(Analog(1.W))
-  val sw_2                 = IO(Analog(1.W))
-  val sw_3                 = IO(Analog(1.W))
-  val sw_4                 = IO(Analog(1.W))
-  val sw_5                 = IO(Analog(1.W))
-  val sw_6                 = IO(Analog(1.W))
-  val sw_7                 = IO(Analog(1.W))
+  val sw_0                 = IO(Input(Bool()))
+  val sw_1                 = IO(Input(Bool()))
+  val sw_2                 = IO(Input(Bool()))
+  val sw_3                 = IO(Input(Bool()))
+  val sw_4                 = IO(Input(Bool()))
+  val sw_5                 = IO(Input(Bool()))
+  val sw_6                 = IO(Input(Bool()))
+  val sw_7                 = IO(Input(Bool()))
 
 
   //-----------------------------------------------------------------------