diff --git a/web/js/controller.js b/web/js/controller.js
index 8eeecdb6..d024dc8f 100644
--- a/web/js/controller.js
+++ b/web/js/controller.js
@@ -428,7 +428,7 @@
     event.sub(GAMEPAD_DISCONNECTED, () => message.show('Gamepad disconnected'));
     // touch stuff
     event.sub(MENU_HANDLER_ATTACHED, (data) => {
-        menuScreen.addEventListener(data.event, data.handler);
+        menuScreen.addEventListener(data.event, data.handler, {passive: true});
     });
     event.sub(KEY_PRESSED, onKeyPress);
     event.sub(KEY_RELEASED, onKeyRelease);
diff --git a/web/js/input/touch.js b/web/js/input/touch.js
index 89662078..9e645863 100644
--- a/web/js/input/touch.js
+++ b/web/js/input/touch.js
@@ -262,13 +262,13 @@ const touch = (() => {
     // touch/mouse events for control buttons. mouseup events is binded to window.
     buttons.forEach((btn) => {
         btn.addEventListener('mousedown', handleButtonDown);
-        btn.addEventListener('touchstart', handleButtonDown);
+        btn.addEventListener('touchstart', handleButtonDown, {passive: true});
         btn.addEventListener('touchend', handleButtonUp);
     });
 
     // touch/mouse events for dpad. mouseup events is binded to window.
     vpadHolder.addEventListener('mousedown', handleVpadJoystickDown);
-    vpadHolder.addEventListener('touchstart', handleVpadJoystickDown);
+    vpadHolder.addEventListener('touchstart', handleVpadJoystickDown, {passive: true});
     vpadHolder.addEventListener('touchend', handleVpadJoystickUp);
 
     dpad.forEach((arrow) => {