diff --git a/tests/test_cli.py b/tests/test_cli.py
index 9212e05..f2839b3 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -167,7 +167,7 @@ async def test_send_file(self, cli, server):
         output_1 = await cli(
             'send-file', 'ECHOECHO', pytest.msgapi['msgapi']['id'],
             pytest.msgapi['msgapi']['secret'], pytest.msgapi['msgapi']['private'],
-            server.threema_jpg, 'See the picture?')
+            server.threema_jpg, '-c', 'See the picture?')
         assert output_1
         assert len(server.latest_blob_ids) == 1
         output_2 = await cli(