diff --git a/boards/sim/sim/sim/src/sim_bringup.c b/boards/sim/sim/sim/src/sim_bringup.c
index e088b23cc7b..24f3622818f 100644
--- a/boards/sim/sim/sim/src/sim_bringup.c
+++ b/boards/sim/sim/sim/src/sim_bringup.c
@@ -50,6 +50,7 @@
 #include <nuttx/wireless/pktradio.h>
 #include <nuttx/wireless/bluetooth/bt_null.h>
 #include <nuttx/wireless/bluetooth/bt_uart_shim.h>
+#include <nuttx/wireless/bluetooth/bt_uart_bridge.h>
 #include <nuttx/wireless/ieee802154/ieee802154_loopback.h>
 
 #ifdef CONFIG_LCD_DEV
@@ -386,6 +387,17 @@ int sim_bringup(void)
 #  endif
 #endif
 
+#ifdef CONFIG_BLUETOOTH_UART_BRIDGE
+  /* Register the Bluetooth BT/BLE dual mode bridge driver */
+
+  ret = bt_uart_bridge_register("/dev/ttyHCI",
+                                "/dev/ttyBT", "/dev/ttyBLE");
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: bt_uart_bridge_register() failed: %d\n", ret);
+    }
+#endif
+
 #ifdef CONFIG_SIM_I2CBUS
   /* Initialize the i2c master bus device */