diff --git a/configs/olimex-stm32-p407/include/board.h b/configs/olimex-stm32-p407/include/board.h
index 888ddad8735..4b7429b3c69 100644
--- a/configs/olimex-stm32-p407/include/board.h
+++ b/configs/olimex-stm32-p407/include/board.h
@@ -334,6 +334,7 @@ extern "C"
 /************************************************************************************
  * Public Function Prototypes
  ************************************************************************************/
+
 /************************************************************************************
  * Name: stm32_boardinitialize
  *
diff --git a/configs/olimex-stm32-p407/src/olimex-stm32-p407.h b/configs/olimex-stm32-p407/src/olimex-stm32-p407.h
index 785fed0002a..1c6d4b93e6c 100644
--- a/configs/olimex-stm32-p407/src/olimex-stm32-p407.h
+++ b/configs/olimex-stm32-p407/src/olimex-stm32-p407.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * configs/olimex-stm32-p107/src/olimex-stm32-p407.h
+ * configs/olimex-stm32-p407/src/olimex-stm32-p407.h
  *
  *   Copyright (C) 2016-2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
diff --git a/configs/xmc4500-relax/src/xmc4_autoleds.c b/configs/xmc4500-relax/src/xmc4_autoleds.c
index 69eda6dee93..8f584d66c96 100644
--- a/configs/xmc4500-relax/src/xmc4_autoleds.c
+++ b/configs/xmc4500-relax/src/xmc4_autoleds.c
@@ -119,7 +119,7 @@ static void board_led2_on(int led)
   xmc4_gpio_write(GPIO_LED2, ledon);
 }
 
-void board_led1_off(int led)
+static void board_led1_off(int led)
 {
   switch (led)
     {
@@ -136,7 +136,7 @@ void board_led1_off(int led)
   xmc4_gpio_write(GPIO_LED1, false);
 }
 
-void board_led2_off(int led)
+static void board_led2_off(int led)
 {
   switch (led)
     {