diff --git a/Dockerfile b/Dockerfile
index ae7f5fb..cadb213 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -57,4 +57,3 @@ COPY hocrtotei /usr/local/bin
 COPY ocr /usr/local/bin
 
 ENTRYPOINT ["ocr"]
-CMD ["--help"]
diff --git a/wrapper/ocr b/wrapper/ocr
new file mode 100755
index 0000000..7f74cd7
--- /dev/null
+++ b/wrapper/ocr
@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+# coding=utf-8
+
+import argparse
+import subprocess
+
+container_image = 'gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/ocr:latest'
+
+parser = argparse.ArgumentParser(add_help=False)
+parser.add_argument(
+    '-i',
+    dest='input_dir',
+    required=False
+)
+parser.add_argument(
+    '-o',
+    dest='output_dir',
+    required=False
+)
+args, ocr_args = parser.parse_known_args()
+
+if args.input_dir == None or args.output_dir == None:
+    if args.input_dir != None:
+        ocr_args.append('-i')
+        ocr_args.append('/files_for_ocr')
+    if args.output_dir != None:
+        ocr_args.append('-o')
+        ocr_args.append('/files_from_ocr')
+    subprocess.run(['docker', 'run', '--rm', '-it', container_image] + ocr_args)
+else:
+    subprocess.run(['docker', 'run', '--rm', '-it', '-v', args.input_dir + ':/files_for_ocr', '-v', args.output_dir + ':/files_from_ocr', container_image, '-i', '/files_for_ocr', '-o', '/files_from_ocr'] + ocr_args)