diff --git a/build_library/grub.cfg b/build_library/grub.cfg
index c229cf35cd..d10de0ffb6 100644
--- a/build_library/grub.cfg
+++ b/build_library/grub.cfg
@@ -19,7 +19,7 @@ set randomize_disk_guid=""
 set oem_id=""
 
 # Anything else the OEM adds should use this variable.
-set linux_append=""
+set linux_append="testparam1"
 
 set secure_boot="0"