diff --git a/boot/zephyr/socs/nrf54l15_cpuapp.conf b/boot/zephyr/socs/nrf54l15_cpuapp.conf
new file mode 100644
index 0000000000..8db9d2d239
--- /dev/null
+++ b/boot/zephyr/socs/nrf54l15_cpuapp.conf
@@ -0,0 +1,3 @@
+# Link Time Optimizations
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+CONFIG_LTO=y