diff --git a/subsys/bootloader/Kconfig b/subsys/bootloader/Kconfig
index a513b99ddf51..b5ccf81434c3 100644
--- a/subsys/bootloader/Kconfig
+++ b/subsys/bootloader/Kconfig
@@ -187,7 +187,7 @@ config PM_PARTITION_SIZE_B0_IMAGE
 	default 0x7800 if !B0_MIN_PARTITION_SIZE && (SOC_NRF5340_CPUNET)
 	default FPROTECT_BLOCK_SIZE if SOC_SERIES_NRF91X || SOC_NRF5340_CPUAPP
 	default 0x3800 if SOC_NRF5340_CPUNET
-	default 0x7800 if SOC_NRF54L15_CPUAPP
+	default 0x9800 if SOC_NRF54L15_CPUAPP
 	default 0x7000 if !B0_MIN_PARTITION_SIZE
 	default 0x4000
 	help