diff --git a/boot/zephyr/pm.yml b/boot/zephyr/pm.yml
index 125b8813c..f220b2870 100644
--- a/boot/zephyr/pm.yml
+++ b/boot/zephyr/pm.yml
@@ -81,7 +81,12 @@ mcuboot_primary_1:
 
 #if (CONFIG_NRF53_MULTI_IMAGE_UPDATE)
 mcuboot_secondary_1:
+  #if (CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY_1)
   region: external_flash
+  #endif /* CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY_1 */
   size: CONFIG_NRF53_RAM_FLASH_SIZE
+  placement:
+    after: mcuboot_secondary
+    align: {start: 4}
 
 #endif /* CONFIG_NRF53_MULTI_IMAGE_UPDATE */