diff --git a/neutron/agent/linux/iptables_manager.py b/neutron/agent/linux/iptables_manager.py
index c9a2b894b03..11b275d3d75 100644
--- a/neutron/agent/linux/iptables_manager.py
+++ b/neutron/agent/linux/iptables_manager.py
@@ -18,9 +18,9 @@
 
 """Implements iptables rules using linux utilities."""
 
-import inspect
 import os
 import re
+import sys
 
 from oslo.config import cfg
 from oslo.utils import excutils
@@ -42,7 +42,7 @@ LOG = logging.getLogger(__name__)
 #             (max_chain_name_length - len('-POSTROUTING') == 16)
 def get_binary_name():
     """Grab the name of the binary we're running in."""
-    return os.path.basename(inspect.stack()[-1][1])[:16]
+    return os.path.basename(sys.argv[0])[:16]
 
 binary_name = get_binary_name()
 
diff --git a/neutron/tests/unit/test_iptables_manager.py b/neutron/tests/unit/test_iptables_manager.py
index 54380401d74..e96309fec3d 100644
--- a/neutron/tests/unit/test_iptables_manager.py
+++ b/neutron/tests/unit/test_iptables_manager.py
@@ -13,8 +13,8 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import inspect
 import os
+import sys
 
 import mock
 from oslo.config import cfg
@@ -190,8 +190,8 @@ class IptablesManagerStateFulTestCase(base.BaseTestCase):
         self.execute = mock.patch.object(self.iptables, "execute").start()
 
     def test_binary_name(self):
-        self.assertEqual(iptables_manager.binary_name,
-                         os.path.basename(inspect.stack()[-1][1])[:16])
+        expected = os.path.basename(sys.argv[0])[:16]
+        self.assertEqual(expected, iptables_manager.binary_name)
 
     def test_get_chain_name(self):
         name = '0123456789' * 5