diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index 4c4db461f46..63bcb46eced 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -48,7 +48,8 @@ config BLUETOOTH_TINYCRYPT_ECC
 	help
 	  If this option is set TinyCrypt library is also used for LE Secure
 	  Connections elliptic curve Diffie-Hellman key agreement. If not set
-	  controller crypto is used for ECDH.
+	  controller crypto is used for ECDH and if controller doesn't support
+	  required HCI commands LE Secure Connections support will be disabled.
 
 config  BLUETOOTH_HCI_CMD_COUNT
 	int "Number of HCI command buffers"