diff --git a/build/buildcvs b/build/buildcvs
index 723d9e2b59ad24041c6fa7edc77864d5c73e7ee8..bd30a95c8433eaac8b3a1caee043b9b418b2065e 100644
--- a/build/buildcvs
+++ b/build/buildcvs
@@ -143,6 +143,11 @@ case "$lustretag" in
     b_uoss)
         lnettag="b_uoss"
         ;;
+    
+    # CMD3
+    b_post_cmd3)
+        ldiskfstag="b1_8_iam"
+        ;;
 
     # v1.0-v1.3, v1.4.0-v1.4.2
     v1_[0-3]_*|v1_4_[0-2]|v1_4_[0-2]_*)