diff --git a/include/mrc.sh b/include/mrc.sh
index c83cda7b..e75b37e7 100644
--- a/include/mrc.sh
+++ b/include/mrc.sh
@@ -4,11 +4,7 @@
 # Modifications in this version are Copyright 2021,2023-2025 Leah Rowe.
 # Original copyright detailed in repo: https://review.coreboot.org/coreboot/
 
-MRC_board=""
-MRC_hash=""
-MRC_url=""
-MRC_url_bkup=""
-SHELLBALL=""
+eval "`newvar MRC_board MRC_hash MRC_url MRC_url_bkup SHELLBALL`"
 
 extract_refcode()
 {