diff --git a/samples/bluetooth/mesh/CMakeLists.txt b/samples/bluetooth/mesh/CMakeLists.txt
index c7ead201423..5547c4c5763 100644
--- a/samples/bluetooth/mesh/CMakeLists.txt
+++ b/samples/bluetooth/mesh/CMakeLists.txt
@@ -3,6 +3,10 @@
 cmake_minimum_required(VERSION 3.13.1)
 set(QEMU_EXTRA_FLAGS -s)
 
+if((BOARD STREQUAL nrf51_blenano) OR (BOARD STREQUAL nrf51_ble400))
+  set(CONF_FILE nrf51_qfaa.conf)
+endif()
+
 include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
 project(mesh)
 
diff --git a/samples/bluetooth/mesh/prj_nrf51_blenano.conf b/samples/bluetooth/mesh/nrf51_qfaa.conf
similarity index 100%
rename from samples/bluetooth/mesh/prj_nrf51_blenano.conf
rename to samples/bluetooth/mesh/nrf51_qfaa.conf