diff --git a/adafruit_pcf8575.py b/adafruit_pcf8575.py
index 001fee5..37de7ff 100644
--- a/adafruit_pcf8575.py
+++ b/adafruit_pcf8575.py
@@ -104,7 +104,7 @@ def read_pin(self, pin: int) -> bool:
         :param int pin: The pin number
         """
 
-        return bool((self.read_gpio() >> pin) & 0x1)
+        return ((self.read_gpio() >> pin) & 0x1) == 1
 
 
 """