diff --git a/button.py b/button.py
index 638a11e..b8e007e 100644
--- a/button.py
+++ b/button.py
@@ -6,8 +6,8 @@ class button:
         self.pi = pi
         self.gpio = gpio
         self.callback = callback
-        self.pi.set_glitch_filter(self.gpio, 20000)
     async def start(self):
         await self.pi.set_mode(self.gpio, asyncpio.INPUT)
         await self.pi.set_pull_up_down(self.gpio, asyncpio.PUD_UP)
+        self.pi.set_glitch_filter(self.gpio, 20000)
         self.cb = await self.pi.callback(self.gpio, asyncpio.EITHER_EDGE, self.callback)
\ No newline at end of file