diff --git a/boards/nrf51dongle/include/periph_conf.h b/boards/nrf51dongle/include/periph_conf.h
index 2fca29fb0b..165e1f8c50 100644
--- a/boards/nrf51dongle/include/periph_conf.h
+++ b/boards/nrf51dongle/include/periph_conf.h
@@ -80,6 +80,15 @@ static const timer_conf_t timer_config[] = {
 #define UART_PIN_CTS        10
 /** @} */
 
+/**
+ * @brief   ADC configuration
+ *
+ * The configuration consists simply of a list of channels that should be used
+ * @{
+ */
+#define ADC_NUMOF          (0)
+/** @} */
+
 /**
  * @name Radio device configuration
  *