diff --git a/lib/button/index.js b/lib/button/index.js
index a8c02cd..cbdafa8 100644
--- a/lib/button/index.js
+++ b/lib/button/index.js
@@ -70,10 +70,10 @@ class Button extends Emitter {
       const Provider = await getProvider(options, "builtin/digital");
 
       let mode = Provider.Input;
-      if (!options.isPullup) {
+      if (typeof options.isPullup !== "undefined") {
         mode = Provider.InputPullUp;
       }
-      if (!options.isPulldown) {
+      if (typeof options.isPulldown !== "undefined") {
         mode = Provider.InputPullDown;
       }
 
@@ -99,12 +99,12 @@ class Button extends Emitter {
         },
         downValue: {
           get: () => {
-            return 1 ^ this.isPullup ^ this.invert;
+            return 1 ^ this.#state.isPullup ^ this.invert;
           }
         },
         upValue: {
           get: () => {
-            return 0 ^ this.isPullup ^ this.invert;
+            return 0 ^ this.#state.isPullup ^ this.invert;
           }
         },
         holdtime: {
@@ -145,7 +145,6 @@ class Button extends Emitter {
   intialize(options, callback) { }
 
   processRead() {
-
     if (this.isOpen) {
       this.emit("open");
       timer.clearTimeout(this.#state.interval);