diff --git a/html/user/buda_submit.php b/html/user/buda_submit.php
index 5d65b71ee9..02475a2d9d 100644
--- a/html/user/buda_submit.php
+++ b/html/user/buda_submit.php
@@ -243,6 +243,7 @@ function file_ref_out($i, $fname) {
 '        <file_ref>
             <file_name><OUTFILE_%d/></file_name>
             <open_name>%s</open_name>
+            <copy_file/>
         </file_ref>
 ',      $i, $fname
     );
diff --git a/samples/docker_wrapper/test_buda/Dockerfile_worker_1 b/samples/docker_wrapper/test_buda/Dockerfile_worker_1
new file mode 100644
index 0000000000..d897eaff2b
--- /dev/null
+++ b/samples/docker_wrapper/test_buda/Dockerfile_worker_1
@@ -0,0 +1,3 @@
+FROM debian
+WORKDIR /app
+CMD ./main_2.sh
diff --git a/samples/docker_wrapper/test_buda/main_2.sh b/samples/docker_wrapper/test_buda/main_2.sh
new file mode 100644
index 0000000000..c09b323cc4
--- /dev/null
+++ b/samples/docker_wrapper/test_buda/main_2.sh
@@ -0,0 +1,3 @@
+#! /bin/bash
+
+worker_3_x86_64-pc-linux-gnu --nsecs 20 in out
diff --git a/samples/docker_wrapper/test_buda/worker_3_x86_64-pc-linux-gnu b/samples/docker_wrapper/test_buda/worker_3_x86_64-pc-linux-gnu
new file mode 100644
index 0000000000..0aff3a397e
Binary files /dev/null and b/samples/docker_wrapper/test_buda/worker_3_x86_64-pc-linux-gnu differ