diff --git a/samples/tfm/tfm_psa_template/sysbuild/mcuboot/boards/nrf54l15dk_nrf54l15_cpuapp.conf b/samples/tfm/tfm_psa_template/sysbuild/mcuboot/boards/nrf54l15dk_nrf54l15_cpuapp.conf
new file mode 100644
index 000000000000..5cbf80648e67
--- /dev/null
+++ b/samples/tfm/tfm_psa_template/sysbuild/mcuboot/boards/nrf54l15dk_nrf54l15_cpuapp.conf
@@ -0,0 +1,2 @@
+# Not yet supported for MCUboot and nRF54L15
+CONFIG_FPROTECT=n