diff --git a/samples/drivers/mbox/sample.yaml b/samples/drivers/mbox/sample.yaml
index 2b401812ae..40a31d3e41 100644
--- a/samples/drivers/mbox/sample.yaml
+++ b/samples/drivers/mbox/sample.yaml
@@ -30,11 +30,8 @@ tests:
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
     extra_args:
+      FILE_SUFFIX=vevif
       mbox_SNIPPET=nordic-ppr
-      mbox_EXTRA_CONF_FILE=boards/nrf54h20dk_nrf54h20_cpuapp_vevif.conf
-      mbox_DTC_OVERLAY_FILE=boards/nrf54h20dk_nrf54h20_cpuapp_vevif.overlay
-      remote_EXTRA_CONF_FILE=boards/nrf54h20dk_nrf54h20_cpuppr_vevif.conf
-      remote_DTC_OVERLAY_FILE=boards/nrf54h20dk_nrf54h20_cpuppr_vevif.overlay
     sysbuild: true
     harness: console
     harness_config:
@@ -49,11 +46,8 @@ tests:
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
     extra_args:
+      FILE_SUFFIX=bellboard
       mbox_SNIPPET=nordic-ppr
-      mbox_EXTRA_CONF_FILE=boards/nrf54h20dk_nrf54h20_cpuapp_bellboard.conf
-      mbox_DTC_OVERLAY_FILE=boards/nrf54h20dk_nrf54h20_cpuapp_bellboard.overlay
-      remote_EXTRA_CONF_FILE=boards/nrf54h20dk_nrf54h20_cpuppr_bellboard.conf
-      remote_DTC_OVERLAY_FILE=boards/nrf54h20dk_nrf54h20_cpuppr_bellboard.overlay
     sysbuild: true
     harness: console
     harness_config: