diff --git a/ports/stm32f4/common-hal/pulseio/PWMOut.h b/ports/stm32f4/common-hal/pulseio/PWMOut.h
index c259d867e8..59fc04e5ff 100644
--- a/ports/stm32f4/common-hal/pulseio/PWMOut.h
+++ b/ports/stm32f4/common-hal/pulseio/PWMOut.h
@@ -3,7 +3,7 @@
  *
  * The MIT License (MIT)
  *
- * Copyright (c) 2017 Lucian Copeland for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal