diff --git a/connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.h b/connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.h
index 2396824188..8babd0abec 100644
--- a/connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.h
+++ b/connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.h
@@ -102,9 +102,9 @@ private:
     mbed::UnbufferedSerial uart;
 #else
     cyhal_uart_t uart;
-#endif
     PinName tx;
     PinName rx;
+#endif
     PinName cts;
     PinName rts;
     PinName bt_host_wake_name;