diff --git a/tests/bluetooth/shell/testcase.yaml b/tests/bluetooth/shell/testcase.yaml
index cec0a9d0046..26b2ae81efb 100644
--- a/tests/bluetooth/shell/testcase.yaml
+++ b/tests/bluetooth/shell/testcase.yaml
@@ -53,7 +53,7 @@ tests:
     build_only: true
   bluetooth.shell.cdc_acm:
     extra_args:
-      - OVERLAY_CONFIG=cdc_acm.conf
+      - EXTRA_CONF_FILE=cdc_acm.conf
       - DTC_OVERLAY_FILE="usb.overlay"
     depends_on: usb_device
     platform_allow:
diff --git a/tests/bluetooth/tester/testcase.yaml b/tests/bluetooth/tester/testcase.yaml
index 25a4fcf83d0..f0f8187112d 100644
--- a/tests/bluetooth/tester/testcase.yaml
+++ b/tests/bluetooth/tester/testcase.yaml
@@ -25,7 +25,7 @@ tests:
       - native_sim
       - nrf5340dk/nrf5340/cpuapp
       - nrf5340_audio_dk/nrf5340/cpuapp
-    extra_args: OVERLAY_CONFIG="overlay-le-audio.conf"
+    extra_args: EXTRA_CONF_FILE="overlay-le-audio.conf"
     tags: bluetooth
     harness: bluetooth
   bluetooth.general.tester_mesh:
@@ -35,6 +35,6 @@ tests:
       - native_posix
       - native_sim
       - nrf52840dk/nrf52840
-    extra_args: OVERLAY_CONFIG="overlay-mesh.conf"
+    extra_args: EXTRA_CONF_FILE="overlay-mesh.conf"
     tags: bluetooth
     harness: bluetooth
diff --git a/tests/bsim/bluetooth/ll/bis/testcase.yaml b/tests/bsim/bluetooth/ll/bis/testcase.yaml
index c13d68f3fb7..befc282922f 100644
--- a/tests/bsim/bluetooth/ll/bis/testcase.yaml
+++ b/tests/bsim/bluetooth/ll/bis/testcase.yaml
@@ -19,7 +19,7 @@ tests:
     harness_config:
       bsim_exe_name: tests_bsim_bluetooth_ll_bis_prj_conf
   bluetooth.ll.bis_ticker_expire_info:
-    extra_args: OVERLAY_CONFIG=overlay-ticker_expire_info.conf
+    extra_args: EXTRA_CONF_FILE=overlay-ticker_expire_info.conf
     platform_allow:
       - nrf52_bsim
       - nrf5340bsim/nrf5340/cpunet