diff --git a/kiwi/bootloader/config/grub2.py b/kiwi/bootloader/config/grub2.py
index dcd03534f83..171690d600a 100644
--- a/kiwi/bootloader/config/grub2.py
+++ b/kiwi/bootloader/config/grub2.py
@@ -1441,9 +1441,10 @@ def _fix_grub_loader_entries_boot_cmdline(self):
             for menu_entry_file in glob.iglob(loader_entries_pattern):
                 with open(menu_entry_file) as grub_menu_entry_file:
                     menu_entry = grub_menu_entry_file.read()
+                    # Made append only
                     menu_entry = re.sub(
                         r'options (.*)',
-                        r'options {0}'.format(self.cmdline),
+                        r'options \1 {0}'.format(self.cmdline),
                         menu_entry
                     )
                 with open(menu_entry_file, 'w') as grub_menu_entry_file: