diff --git a/boards/samr34-xpro/include/periph_conf.h b/boards/samr34-xpro/include/periph_conf.h
index 1a6c66d234..04e9bf45b9 100644
--- a/boards/samr34-xpro/include/periph_conf.h
+++ b/boards/samr34-xpro/include/periph_conf.h
@@ -31,6 +31,12 @@ extern "C" {
  */
 #define CLOCK_CORECLOCK     (48000000U)
 
+/**
+ * @brief Enable the internal DC/DC converter
+ *        The board is equipped with the necessary inductor.
+ */
+#define USE_VREG_BUCK       (1)
+
 /**
  * @name    Timer peripheral configuration
  * @{