diff --git a/samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf b/samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf
index e9e5ac63483..f80f324be53 100644
--- a/samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf
+++ b/samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf
@@ -7,6 +7,7 @@ CONFIG_MAIN_STACK_SIZE=512
 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512
 CONFIG_IPC_SERVICE_BACKEND_RPMSG_WQ_STACK_SIZE=512
 CONFIG_HEAP_MEM_POOL_SIZE=8192
+CONFIG_CBPRINTF_REDUCED_INTEGRAL=y
 
 CONFIG_BT=y
 CONFIG_BT_HCI_RAW=y