diff --git a/adafruit_motor/servo.py b/adafruit_motor/servo.py
index 87d75a0..9c8dbdd 100644
--- a/adafruit_motor/servo.py
+++ b/adafruit_motor/servo.py
@@ -16,7 +16,7 @@
     from typing import Optional, Type
     from types import TracebackType
     from pwmio import PWMOut
-except ImportError:
+except (ImportError, NotImplementedError):
     pass