diff --git a/tests/python/lib/engine.py b/tests/python/lib/engine.py
index d5586d047b..be9c996087 100644
--- a/tests/python/lib/engine.py
+++ b/tests/python/lib/engine.py
@@ -115,11 +115,15 @@ def start(self, start_msgs=None):
         self._stats_receiver.start()
 
         cmd = [self._engine_bin]
-        for option, value in self._options.items():
-            if value is not None:
-                cmd.append(option)
-                if value is not True:
-                    cmd.append(str(value))
+        for option, value_raw in self._options.items():
+            if value_raw is not None:
+                value_list = value_raw
+                if type(value_raw) is not list:
+                    value_list = [value_raw]
+                for val in value_list:
+                    cmd.append(option)
+                    if val is not True:
+                        cmd.append(str(val))
 
         if self._binlog_path:
             cmd.append(self._binlog_path)
diff --git a/tests/python/tests/json_logs/test_signals.py b/tests/python/tests/json_logs/test_signals.py
index 2ab3081fc0..2e421461d3 100644
--- a/tests/python/tests/json_logs/test_signals.py
+++ b/tests/python/tests/json_logs/test_signals.py
@@ -90,7 +90,9 @@ def test_master_sigbus(self):
 
     def test_master_sigabrt(self):
         self.kphp_server.send_signal(signal.SIGABRT)
-        self.kphp_server.restart()
+        with self.assertRaises(RuntimeError):
+            self.kphp_server.stop()
+        self.kphp_server.start()
         self.kphp_server.assert_json_log(
             expect=[{
                 "version": 0, "type": -1, "env": "", "msg": "SIGABRT terminating program",