diff --git a/meta-oniro-core/conf/distro/oniro-linux.conf b/meta-oniro-core/conf/distro/oniro-linux.conf
index 494e21f298222f75a8b2848d3acff6ba3e8db641..82325346b036a14cb4cd4dcc59733ed2be57ac21 100644
--- a/meta-oniro-core/conf/distro/oniro-linux.conf
+++ b/meta-oniro-core/conf/distro/oniro-linux.conf
@@ -87,7 +87,8 @@ MACHINE_FEATURES:qemux86-64 += "efi"
 MACHINE_FEATURES:qemux86 += "efi"
 
 # Add bootindex to qemu boot device to prevent boot order from being changed in ovmf file
-# and not break boot order with EFI. See qemuboot.bbclass for more information
+# and not break boot order with EFI. See qemuboot.bbclass for more information.
+# We set it here for the machines we don't have control on.
 QB_ROOTFS_EXTRA_OPT:qemux86-64 += ",bootindex=0"
 QB_ROOTFS_EXTRA_OPT:qemux86 += ",bootindex=0"