diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 405d48c3e63e..48c837530a11 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -5156,8 +5156,8 @@ static void set_ext_conn_params(struct hci_conn *conn,
 	p->max_ce_len = cpu_to_le16(0x0000);
 }
 
-int hci_le_ext_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn,
-				u8 own_addr_type)
+static int hci_le_ext_create_conn_sync(struct hci_dev *hdev,
+				       struct hci_conn *conn, u8 own_addr_type)
 {
 	struct hci_cp_le_ext_create_conn *cp;
 	struct hci_cp_le_ext_conn_param *p;