diff --git a/neutron/tests/functional/resources/process.py b/neutron/tests/functional/resources/process.py
index 351029f0db0..eada6970f6b 100644
--- a/neutron/tests/functional/resources/process.py
+++ b/neutron/tests/functional/resources/process.py
@@ -82,7 +82,7 @@ class OvnNorthd(DaemonProcessFixture):
 
     def stop(self):
         try:
-            if os.path.isfile(self.unixctl_path):
+            if os.path.exists(self.unixctl_path):
                 stop_cmd = ['ovs-appctl', '-t', self.unixctl_path, 'exit']
                 utils.execute(stop_cmd)
         except Exception: