diff --git a/configs/stm32f4discovery/src/stm32_pwm.c b/configs/stm32f4discovery/src/stm32_pwm.c
index b04db2aa31..7ef3584be2 100644
--- a/configs/stm32f4discovery/src/stm32_pwm.c
+++ b/configs/stm32f4discovery/src/stm32_pwm.c
@@ -1,5 +1,5 @@
 /************************************************************************************
- * configs/stm32f4discovery/src/stm32_psm.c
+ * configs/stm32f4discovery/src/stm32_pwm.c
  *
  *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>