diff --git a/qp_woltka/tests/test_woltka.py b/qp_woltka/tests/test_woltka.py
index ff7ab6e..7b1acc0 100644
--- a/qp_woltka/tests/test_woltka.py
+++ b/qp_woltka/tests/test_woltka.py
@@ -184,8 +184,8 @@ def test_woltka_to_array_rep82(self):
             'none --glob "*.woltka-taxa/none.biom" --rename &\n',
             'wait\n',
             '\n',
-            f'cd {out_dir}; tar -cvf alignment.tar *.sam.xz\n',
-            f'cd {out_dir}; tar zxvf coverages.tgz coverages\n'
+            f'cd {out_dir}; tar -cvf alignment.tar *.sam.xz; '
+            'tar zxvf coverages.tgz coverages\n',
             'fi\n',
             f'finish_woltka {url} {job_id} {out_dir}\n',
             'date\n']
@@ -313,8 +313,8 @@ def test_woltka_to_array_wol(self):
             'per-gene --glob "*.woltka-per-gene" --rename &\n',
             'wait\n',
             '\n',
-            f'cd {out_dir}; tar -cvf alignment.tar *.sam.xz\n',
-            f'cd {out_dir}; tar zxvf coverages.tgz coverages\n'
+            f'cd {out_dir}; tar -cvf alignment.tar *.sam.xz; '
+            'tar zxvf coverages.tgz coverages\n',
             'fi\n',
             f'finish_woltka {url} {job_id} {out_dir}\n',
             'date\n']
diff --git a/qp_woltka/woltka.py b/qp_woltka/woltka.py
index 2ea19cb..de7aa97 100644
--- a/qp_woltka/woltka.py
+++ b/qp_woltka/woltka.py
@@ -140,8 +140,8 @@ def woltka_to_array(files, output, database_bowtie2, prep, url, name):
              '\n'.join(merges),
              "wait",
              '\n'.join(fcmds),
-             f'cd {output}; tar -cvf alignment.tar *.sam.xz\n'
-             f'cd {output}; tar zxvf coverages.tgz coverages\n'
+             f'cd {output}; tar -cvf alignment.tar *.sam.xz; '
+             'tar zxvf coverages.tgz coverages\n',
              'fi',
              f'finish_woltka {url} {name} {output}\n'
              "date"]  # end time