diff --git a/src/hci_transport.h b/src/hci_transport.h
index 7c0989c88..70b13a16f 100644
--- a/src/hci_transport.h
+++ b/src/hci_transport.h
@@ -128,6 +128,7 @@ typedef struct {
     uint32_t   baudrate_main; // = 0: same as initial baudrate
     int        flowcontrol;   // 
     const char *device_name;
+    int        parity;        // see btstack_uart.h BTSTACK_UART_PARITY
 } hci_transport_config_uart_t;
 
 
diff --git a/src/hci_transport_h4.c b/src/hci_transport_h4.c
index 66229897e..f606aa075 100644
--- a/src/hci_transport_h4.c
+++ b/src/hci_transport_h4.c
@@ -410,6 +410,7 @@ static void hci_transport_h4_init(const void * transport_config){
     hci_transport_config_uart_t * hci_transport_config_uart = (hci_transport_config_uart_t*) transport_config;
     uart_config.baudrate    = hci_transport_config_uart->baudrate_init;
     uart_config.flowcontrol = hci_transport_config_uart->flowcontrol;
+    uart_config.parity      = hci_transport_config_uart->parity;
     uart_config.device_name = hci_transport_config_uart->device_name;
 
     // set state to off
diff --git a/src/hci_transport_h5.c b/src/hci_transport_h5.c
index 601fce37c..bced9edc2 100644
--- a/src/hci_transport_h5.c
+++ b/src/hci_transport_h5.c
@@ -755,6 +755,7 @@ static void hci_transport_h5_init(const void * transport_config){
     hci_transport_config_uart_t * hci_transport_config_uart = (hci_transport_config_uart_t*) transport_config;
     uart_config.baudrate    = hci_transport_config_uart->baudrate_init;
     uart_config.flowcontrol = hci_transport_config_uart->flowcontrol;
+    uart_config.parity      = hci_transport_config_uart->parity;
     uart_config.device_name = hci_transport_config_uart->device_name;
 
     // setup UART driver