diff --git a/include/bluetooth/bluetooth.h b/include/bluetooth/bluetooth.h
index f2b0e621c44..ee3fa2fe06d 100644
--- a/include/bluetooth/bluetooth.h
+++ b/include/bluetooth/bluetooth.h
@@ -421,6 +421,19 @@ int bt_br_set_discoverable(bool enable);
  */
 int bt_br_set_connectable(bool enable);
 
+/** @brief Generate random data.
+ *
+ *  A random number generation helper which utilizes the Bluetooth
+ *  controller's own RNG.
+ *
+ *  @param buf Buffer to insert the random data
+ *  @param len Length of random data to generate
+ *
+ *  @return Zero on success or error code otherwise, positive in case
+ *  of protocol error or negative (POSIX) in case of stack internal error
+ */
+int bt_rand(void *buf, size_t len);
+
 /**
  * @}
  */
diff --git a/net/bluetooth/hci_core.h b/net/bluetooth/hci_core.h
index bb4ad9a3f10..b6ae3d15d96 100644
--- a/net/bluetooth/hci_core.h
+++ b/net/bluetooth/hci_core.h
@@ -178,8 +178,6 @@ const char *bt_addr_str(const bt_addr_t *addr);
 const char *bt_addr_le_str(const bt_addr_le_t *addr);
 #endif
 
-int bt_rand(void *buf, size_t len);
-
 int bt_le_scan_update(bool fast_scan);
 
 bool bt_addr_le_is_bonded(const bt_addr_le_t *addr);
diff --git a/net/bluetooth/hci_ecc.c b/net/bluetooth/hci_ecc.c
index 70a1179817a..3a331eb3f88 100644
--- a/net/bluetooth/hci_ecc.c
+++ b/net/bluetooth/hci_ecc.c
@@ -26,6 +26,7 @@
 #include <tinycrypt/utils.h>
 #include <tinycrypt/ecc.h>
 #include <tinycrypt/ecc_dh.h>
+#include <bluetooth/bluetooth.h>
 #include <bluetooth/log.h>
 #include <bluetooth/hci.h>
 #include <bluetooth/driver.h>