diff --git a/nordic/trezor/trezor-ble/sysbuild/mcuboot.conf b/nordic/trezor/trezor-ble/sysbuild/mcuboot.conf
index cce9abfcc3..da5fef8c3c 100644
--- a/nordic/trezor/trezor-ble/sysbuild/mcuboot.conf
+++ b/nordic/trezor/trezor-ble/sysbuild/mcuboot.conf
@@ -1,5 +1,11 @@
 #CONFIG_PM_PARTITION_SIZE_MCUBOOT=0x10000
 
+CONFIG_CLOCK_CONTROL=y
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION=y
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y
+CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_PERIOD=4000
+
 CONFIG_SERIAL=y
 CONFIG_UART_LINE_CTRL=y
 CONFIG_UART_NRFX=y