diff --git a/nlp b/nlp
index 3866106..3f4a42a 100755
--- a/nlp
+++ b/nlp
@@ -36,10 +36,11 @@ def parse_arguments():
                         required=False,
                         type=int)
     parser.add_argument('--zip',
-                        action='store_true',
-                        default=False,
+                        default='vrt-results',
                         dest='zip',
-                        help='package result files in zip bundles',
+                        type=str,
+                        help='''package result files in zip bundles takes a
+                        string as a filename as an optional paramteer''',
                         required=False)
     parser.add_argument('--check-encoding',
                         action='store_true',
@@ -112,8 +113,9 @@ class NLPWorkflow(WorkflowRunner):
         if zip:
             vrt_zip_jobs = []
             vrt_zip_job_dependencies = nlp_jobs
-            cmd = 'cd "%s" && zip -m vrt.zip */*.vrt -x "pyflow.data*" && cd -' % (
-                self.output_dir
+            cmd = 'cd "%s" && zip -m "%s".zip */*.vrt -x "pyflow.data*" && cd -' % (
+                self.output_dir,
+                self.zip
             )
             vrt_zip_jobs.append(
                 self.addTask(