diff --git a/samples/sid_end_device/boards/rak4631_nrf52840.conf b/samples/sid_end_device/boards/rak4631_nrf52840.conf
index ac3e671ef8..ba573dad29 100644
--- a/samples/sid_end_device/boards/rak4631_nrf52840.conf
+++ b/samples/sid_end_device/boards/rak4631_nrf52840.conf
@@ -6,3 +6,4 @@
 
 CONFIG_SIDEWALK_DFU=n
 CONFIG_SHELL_BACKEND_RTT=y
+CONFIG_LOG_BACKEND_RTT_BUFFER_SIZE=8096