diff --git a/boards/mega-xplained/include/board.h b/boards/mega-xplained/include/board.h
index 2e2176d133..e79f4ef13e 100644
--- a/boards/mega-xplained/include/board.h
+++ b/boards/mega-xplained/include/board.h
@@ -113,9 +113,9 @@ extern "C" {
  * @name    ADC NTC, light sensor, and filter lines
  * @{
  */
-#define NTC_OUTPUT             GPIO_PIN(PORT_A, 5)
-#define LIGHT_SENSOR_OUTPUT    GPIO_PIN(PORT_A, 6)
-#define FILTER_OUTPUT          GPIO_PIN(PORT_A, 7)
+#define NTC_OUTPUT             ADC_LINE(7)
+#define LIGHT_SENSOR_OUTPUT    ADC_LINE(6)
+#define FILTER_OUTPUT          ADC_LINE(5)
 /** @} */
 
 /**