diff --git a/packages/google-cloud-dialogflow/synth.py b/packages/google-cloud-dialogflow/synth.py
index f8c9ce0ec991..a08acd814cf8 100644
--- a/packages/google-cloud-dialogflow/synth.py
+++ b/packages/google-cloud-dialogflow/synth.py
@@ -33,7 +33,7 @@
             "README.rst",
             "docs/index.rst",
             "docs/conf.py",
-            "nox.py",
+            "noxfile.py",
         ],
     )
     s.move(library / f"google/cloud/dialogflow_{version}", f"dialogflow_{version}")