diff --git a/ocr b/ocr
index a25e4c2..0c9eafb 100755
--- a/ocr
+++ b/ocr
@@ -67,9 +67,9 @@ def parse_arguments():
     )
     parser.add_argument(
         '--zip',
-        action='store_true',
-        default=False,
+        default='ocr-result-files',
         dest='zip',
+        type=str,
         help='package result files in zip bundles',
         required=False
     )
@@ -400,8 +400,9 @@ class OCRWorkflow(WorkflowRunner):
             all_zip_job_dependencies = (hocr_to_tei_jobs
                                         + pdf_merge_jobs
                                         + txt_merge_jobs)
-            cmd = 'cd "%s" && zip all.zip */*.{pdf,txt,xml} -x "pyflow.data*" && cd -' % (
-                self.output_dir
+            cmd = 'cd "%s" && zip "%s"-all-files.zip */*.{pdf,txt,xml} -x "pyflow.data*" && cd -' % (
+                self.output_dir,
+                self.zip
             )
             all_zip_jobs.append(
                 self.addTask(
@@ -413,8 +414,9 @@ class OCRWorkflow(WorkflowRunner):
 
             pdf_zip_jobs = []
             pdf_zip_job_dependencies = all_zip_jobs
-            cmd = 'cd "%s" && zip -m pdf.zip */*.pdf -x "pyflow.data*" && cd -' % (
-                self.output_dir
+            cmd = 'cd "%s" && zip -m "%s"-pdf.zip */*.pdf -x "pyflow.data*" && cd -' % (
+                self.output_dir,
+                self.zip
             )
             pdf_zip_jobs.append(
                 self.addTask(
@@ -426,8 +428,9 @@ class OCRWorkflow(WorkflowRunner):
 
             txt_zip_jobs = []
             txt_zip_job_dependencies = all_zip_jobs
-            cmd = 'cd "%s" && zip -m txt.zip */*.txt -x "pyflow.data*" && cd -' % (
-                self.output_dir
+            cmd = 'cd "%s" && zip -m "%s"-txt.zip */*.txt -x "pyflow.data*" && cd -' % (
+                self.output_dir,
+                self.zip
             )
             txt_zip_jobs.append(
                 self.addTask(
@@ -439,8 +442,9 @@ class OCRWorkflow(WorkflowRunner):
 
             xml_zip_jobs = []
             xml_zip_job_dependencies = all_zip_jobs
-            cmd = 'cd "%s" && zip -m xml.zip */*.xml -x "pyflow.data*" && cd -' % (
-                self.output_dir
+            cmd = 'cd "%s" && zip -m "%s"-xml.zip */*.xml -x "pyflow.data*" && cd -' % (
+                self.output_dir,
+                self.zip
             )
             xml_zip_jobs.append(
                 self.addTask(