diff --git a/lib/mgmt.h b/lib/mgmt.h
index 570dec9..276445d 100644
--- a/lib/mgmt.h
+++ b/lib/mgmt.h
@@ -583,6 +583,21 @@ struct mgmt_cp_set_phy_confguration {
 	uint32_t	selected_phys;
 } __packed;
 
+#define MGMT_OP_SET_BLOCKED_KEYS	0x0046
+
+#define HCI_BLOCKED_KEY_TYPE_LINKKEY	0x00
+#define HCI_BLOCKED_KEY_TYPE_LTK		0x01
+#define HCI_BLOCKED_KEY_TYPE_IRK		0x02
+
+struct mgmt_blocked_key_info {
+	uint8_t type;
+	uint8_t val[16];
+} __packed;
+
+struct mgmt_cp_set_blocked_keys {
+	uint16_t key_count;
+	struct mgmt_blocked_key_info keys[0];
+} __packed;
 
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {