diff --git a/adafruit_pca9685.py b/adafruit_pca9685.py
index f58d1bf..cc8cb0a 100755
--- a/adafruit_pca9685.py
+++ b/adafruit_pca9685.py
@@ -42,7 +42,7 @@
 
 
 class PWMChannel:
-    """A single PCA9685 channel that matches the :py:class:`~pulseio.PWMOut` API."""
+    """A single PCA9685 channel that matches the :py:class:`~pwmio.PWMOut` API."""
 
     def __init__(self, pca, index):
         self._pca = pca