diff --git a/tests/boot/mcuboot_recovery_retention/sysbuild.cmake b/tests/boot/mcuboot_recovery_retention/sysbuild.cmake
index 6000a6416e7..6207fe8e58c 100644
--- a/tests/boot/mcuboot_recovery_retention/sysbuild.cmake
+++ b/tests/boot/mcuboot_recovery_retention/sysbuild.cmake
@@ -1,9 +1,9 @@
 set(mcuboot_EXTRA_ZEPHYR_MODULES "${CMAKE_CURRENT_LIST_DIR}/test_module" CACHE INTERNAL "test_module directory")
 
-if(DEFINED mcuboot_TARGET_OVERLAY_CONFIG)
-  list(APPEND mcuboot_OVERLAY_CONFIG "${CMAKE_CURRENT_LIST_DIR}/sysbuild/mcuboot/${mcuboot_TARGET_OVERLAY_CONFIG}")
-  list(REMOVE_DUPLICATES mcuboot_OVERLAY_CONFIG)
-  set(mcuboot_OVERLAY_CONFIG "${mcuboot_OVERLAY_CONFIG}" CACHE INTERNAL "")
+if(DEFINED mcuboot_TARGET_EXTRA_CONF_FILE)
+  list(APPEND mcuboot_EXTRA_CONF_FILE "${CMAKE_CURRENT_LIST_DIR}/sysbuild/mcuboot/${mcuboot_TARGET_EXTRA_CONF_FILE}")
+  list(REMOVE_DUPLICATES mcuboot_EXTRA_CONF_FILE)
+  set(mcuboot_EXTRA_CONF_FILE "${mcuboot_EXTRA_CONF_FILE}" CACHE INTERNAL "")
 endif()
 
 if(DEFINED mcuboot_TARGET_DTC_OVERLAY_FILE)
diff --git a/tests/boot/mcuboot_recovery_retention/testcase.yaml b/tests/boot/mcuboot_recovery_retention/testcase.yaml
index 0bb7e62e706..9a68b6a7082 100644
--- a/tests/boot/mcuboot_recovery_retention/testcase.yaml
+++ b/tests/boot/mcuboot_recovery_retention/testcase.yaml
@@ -30,7 +30,7 @@ tests:
     extra_args:
       - EXTRA_CONF_FILE="boards/nrf52840dk_nrf52840_mem.conf"
       - DTC_OVERLAY_FILE="boards/nrf52840dk_nrf52840_mem.overlay"
-      - mcuboot_TARGET_OVERLAY_CONFIG="boards/nrf52840dk_nrf52840_mem.conf"
+      - mcuboot_TARGET_EXTRA_CONF_FILE="boards/nrf52840dk_nrf52840_mem.conf"
       - mcuboot_TARGET_DTC_OVERLAY_FILE="boards/nrf52840dk_nrf52840_mem.overlay"
     tags:
       - mcuboot