diff --git a/tests/bluetooth/tester/boards/nrf5340dk_nrf5340_cpuapp.conf b/tests/bluetooth/tester/boards/nrf5340dk_nrf5340_cpuapp.conf
index 29139393b46..6f723ffa160 100644
--- a/tests/bluetooth/tester/boards/nrf5340dk_nrf5340_cpuapp.conf
+++ b/tests/bluetooth/tester/boards/nrf5340dk_nrf5340_cpuapp.conf
@@ -21,3 +21,5 @@ CONFIG_LOG_DEFAULT_LEVEL=3
 CONFIG_BTTESTER_LOG_LEVEL_DBG=y
 
 CONFIG_UART_INTERRUPT_DRIVEN=y
+
+CONFIG_BT_TINYCRYPT_ECC=y