diff --git a/boards/nucleo-f410rb/include/periph_conf.h b/boards/nucleo-f410rb/include/periph_conf.h
index 4660c3c0d8..0e2d38e6f7 100644
--- a/boards/nucleo-f410rb/include/periph_conf.h
+++ b/boards/nucleo-f410rb/include/periph_conf.h
@@ -140,15 +140,16 @@ static const spi_conf_t spi_config[] = {
  *
  * @{
  */
-#define ADC_NUMOF          (6U)
-#define ADC_CONFIG {             \
-    {GPIO_PIN(PORT_A, 0), 0, 0}, \
-    {GPIO_PIN(PORT_A, 1), 0, 1}, \
-    {GPIO_PIN(PORT_A, 4), 0, 4}, \
-    {GPIO_PIN(PORT_B, 0), 0, 8}, \
-    {GPIO_PIN(PORT_C, 1), 0, 11}, \
-    {GPIO_PIN(PORT_C, 0), 0, 10}, \
-}
+static const adc_conf_t adc_config[] = {
+    {GPIO_PIN(PORT_A, 0), 0, 0},
+    {GPIO_PIN(PORT_A, 1), 0, 1},
+    {GPIO_PIN(PORT_A, 4), 0, 4},
+    {GPIO_PIN(PORT_B, 0), 0, 8},
+    {GPIO_PIN(PORT_C, 1), 0, 11},
+    {GPIO_PIN(PORT_C, 0), 0, 10},
+};
+
+#define ADC_NUMOF           ARRAY_SIZE(adc_config)
 /** @} */
 
 #ifdef __cplusplus