diff --git a/build_library/base_image_util.sh b/build_library/base_image_util.sh
index 582a9875a0..b924a7d867 100755
--- a/build_library/base_image_util.sh
+++ b/build_library/base_image_util.sh
@@ -247,7 +247,7 @@ create_base_image() {
   fi
 
   # Setup hybrid MBR if it was enabled
-  if [[ ${FLAGS_hybrid_mbr_hack} -eq ${FLAGS_TRUE} ]]; then
+  if [[ ${FLAGS_hybrid_mbr} -eq ${FLAGS_TRUE} ]]; then
     info "Creating hybrid MBR"
     sudo sfdisk "${BUILD_DIR}/${image_name}" <<EOF
 unit: sectors