diff --git a/wally-pipelined/regression/wally-pipelined-batch-parallel.do b/wally-pipelined/regression/wally-pipelined-batch-parallel.do
index 449747349..8c057004a 100644
--- a/wally-pipelined/regression/wally-pipelined-batch-parallel.do
+++ b/wally-pipelined/regression/wally-pipelined-batch-parallel.do
@@ -18,8 +18,8 @@
 onbreak {resume}
 
 # create library
-if [file exists work] {
-    vdel -all
+if [file exists work$2] {
+    vdel -lib work$2 -all
 }
 vlib work$2