diff --git a/boot/zephyr/pm.yml b/boot/zephyr/pm.yml
index 80ca3d946..125b8813c 100644
--- a/boot/zephyr/pm.yml
+++ b/boot/zephyr/pm.yml
@@ -64,8 +64,8 @@ mcuboot_scratch:
 # Padding placed before image to boot. This reserves space for the MCUboot image header
 # and it ensures that the boot image gets linked with the correct address offset in flash.
 mcuboot_pad:
-    # MCUboot pad must be placed before the 'spm' partition if that is present.
-    # If 'spm' partition is not present, it must be placed before the 'app'.
+    # MCUboot pad must be placed before the primary application partition.
+    # The primary application partition includes the secure firmware if present.
   size: CONFIG_PM_PARTITION_SIZE_MCUBOOT_PAD
   placement:
     before: [mcuboot_primary_app]