diff --git a/force_bdss/cli/tests/test_execution.py b/force_bdss/cli/tests/test_execution.py
index 121f2661c53e5e091e756d210f29b154c4cfe59c..fdb30f6e18deee6581964180dcb9317564a3acea 100644
--- a/force_bdss/cli/tests/test_execution.py
+++ b/force_bdss/cli/tests/test_execution.py
@@ -35,7 +35,7 @@ class TestExecution(unittest.TestCase):
                 stdin=subprocess.PIPE,
                 stdout=subprocess.PIPE)
             proc.communicate(b"1")
-            retcode = proc.wait(5)
+            retcode = proc.wait(timeout=5)
             self.assertEqual(retcode, 0)
 
     def test_unsupported_file_input(self):