diff --git a/board/sifive/unmatched/unmatched.env b/board/sifive/unmatched/unmatched.env
index 34425dc9efa..f309229481b 100644
--- a/board/sifive/unmatched/unmatched.env
+++ b/board/sifive/unmatched/unmatched.env
@@ -16,4 +16,4 @@ partitions=
     name=loader1,start=17K,size=1M,type=${type_guid_gpt_loader1};
     name=loader2,size=4MB,type=${type_guid_gpt_loader2};
     name=system,size=-,bootable,type=${type_guid_gpt_system};
-fdtfile=CONFIG_DEFAULT_FDT_FILE
+fdtfile=DEFAULT_FDT_FILE