diff --git a/tests/subsys/fs/ext2/boards/native_sim_64.overlay b/tests/subsys/fs/ext2/boards/native_sim_64.overlay
deleted file mode 100644
index f3f8b087d9..0000000000
--- a/tests/subsys/fs/ext2/boards/native_sim_64.overlay
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Copyright (c) 2023 Antmicro
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "native_sim.overlay"
diff --git a/tests/subsys/fs/ext2/testcase.yaml b/tests/subsys/fs/ext2/testcase.yaml
index 76ec97de3c..bfe58c979f 100644
--- a/tests/subsys/fs/ext2/testcase.yaml
+++ b/tests/subsys/fs/ext2/testcase.yaml
@@ -4,7 +4,7 @@ tests:
   filesystem.ext2.default:
     platform_allow:
       - native_sim
-      - native_sim_64
+      - native_sim/native/64
       - hifive_unmatched
       - bl5340_dvk/nrf5340/cpuapp
     extra_args:
@@ -13,7 +13,7 @@ tests:
   filesystem.ext2.big:
     platform_allow:
       - native_sim
-      - native_sim_64
+      - native_sim/native/64
     extra_args:
       - CONF_FILE=prj_big.conf
       - EXTRA_DTC_OVERLAY_FILE="ramdisk_big.overlay"
@@ -29,5 +29,5 @@ tests:
   filesystem.ext2.flash:
     platform_allow:
       - native_sim
-      - native_sim_64
+      - native_sim/native/64
     extra_args: CONF_FILE=prj_flash.conf
diff --git a/tests/subsys/fs/fcb/testcase.yaml b/tests/subsys/fs/fcb/testcase.yaml
index 9070bbaf7b..e01566b672 100644
--- a/tests/subsys/fs/fcb/testcase.yaml
+++ b/tests/subsys/fs/fcb/testcase.yaml
@@ -5,9 +5,9 @@ tests:
       - nrf52dk/nrf52832
       - nrf51dk/nrf51822
       - native_posix
-      - native_posix_64
+      - native_posix/native/64
       - native_sim
-      - native_sim_64
+      - native_sim/native/64
       - mr_canhubk3
     tags: flash_circural_buffer
     integration_platforms:
diff --git a/tests/subsys/fs/littlefs/boards/native_sim_64.overlay b/tests/subsys/fs/littlefs/boards/native_sim_64.overlay
deleted file mode 100644
index 8dbed8eb97..0000000000
--- a/tests/subsys/fs/littlefs/boards/native_sim_64.overlay
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Copyright (c) 2019 Jan Van Winkel <jan.van_winkel@dxplore.eu>
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "native_sim.overlay"
diff --git a/tests/subsys/fs/littlefs/testcase.yaml b/tests/subsys/fs/littlefs/testcase.yaml
index 1a125021bf..b64ffa43d9 100644
--- a/tests/subsys/fs/littlefs/testcase.yaml
+++ b/tests/subsys/fs/littlefs/testcase.yaml
@@ -5,7 +5,7 @@ common:
   platform_allow:
     - nrf52840dk/nrf52840
     - native_sim
-    - native_sim_64
+    - native_sim/native/64
     - mimxrt1060_evk
     - mr_canhubk3
   integration_platforms: