diff --git a/build/buildcvs b/build/buildcvs
index 82d3f7f019a200aee88675003443b3a380f52a4a..b64277bdbdab8a92301037545c926d0d9fa3cf9d 100644
--- a/build/buildcvs
+++ b/build/buildcvs
@@ -215,7 +215,7 @@ case "$lustretag" in
     # read-only cache for oss
     b_hd_rocache_oss)
         lnettag="HEAD"
-        ldiskfstag="b_hd_rocache_oss"
+        ldiskfstag="b1_8_iam"
         libcfstag="HEAD"
         ;;