diff --git a/lib/tfw/components/mixins/supervisor_mixin.py b/lib/tfw/components/mixins/supervisor_mixin.py
index 968063e..ab483ff 100644
--- a/lib/tfw/components/mixins/supervisor_mixin.py
+++ b/lib/tfw/components/mixins/supervisor_mixin.py
@@ -8,13 +8,13 @@ from tfw.config import tfwenv
 class SupervisorMixin:
     supervisor = xmlrpc.client.ServerProxy(tfwenv.SUPERVISOR_HTTP_URI).supervisor
 
-    def stop_process(self):
+    def stop_process(self, process_name):
         with suppress(SupervisorFault):
-            self.supervisor.stopProcess(self.process_name)
+            self.supervisor.stopProcess(process_name)
 
-    def start_process(self):
-        self.supervisor.startProcess(self.process_name)
+    def start_process(self, process_name):
+        self.supervisor.startProcess(process_name)
 
-    def restart_process(self):
-        self.stop_process()
-        self.start_process()
+    def restart_process(self, process_name):
+        self.stop_process(process_name)
+        self.start_process(process_name)