diff --git a/homeassistant/generated/application_credentials.py b/homeassistant/generated/application_credentials.py
index b15642d46e1..59e76a9c8ae 100644
--- a/homeassistant/generated/application_credentials.py
+++ b/homeassistant/generated/application_credentials.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/bluetooth.py b/homeassistant/generated/bluetooth.py
index 86da242be80..fc295084315 100644
--- a/homeassistant/generated/bluetooth.py
+++ b/homeassistant/generated/bluetooth.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index 3621c1d48d1..8e13dd971e5 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/countries.py b/homeassistant/generated/countries.py
index 76482a524de..452e65afb02 100644
--- a/homeassistant/generated/countries.py
+++ b/homeassistant/generated/countries.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.countries
 
diff --git a/homeassistant/generated/currencies.py b/homeassistant/generated/currencies.py
index 546bc125a01..3cf2b9a1ab4 100644
--- a/homeassistant/generated/currencies.py
+++ b/homeassistant/generated/currencies.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.currencies
 """
diff --git a/homeassistant/generated/dhcp.py b/homeassistant/generated/dhcp.py
index 8956085a5ab..5be29e022f1 100644
--- a/homeassistant/generated/dhcp.py
+++ b/homeassistant/generated/dhcp.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/languages.py b/homeassistant/generated/languages.py
index 879d4a4cd41..b4aebb0f1a4 100644
--- a/homeassistant/generated/languages.py
+++ b/homeassistant/generated/languages.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.languages [frontend_tag]
 """
diff --git a/homeassistant/generated/mqtt.py b/homeassistant/generated/mqtt.py
index 5d64546b91b..69abf7c64fe 100644
--- a/homeassistant/generated/mqtt.py
+++ b/homeassistant/generated/mqtt.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/ssdp.py b/homeassistant/generated/ssdp.py
index ca6a22e85d6..e5e83d5eae9 100644
--- a/homeassistant/generated/ssdp.py
+++ b/homeassistant/generated/ssdp.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/usb.py b/homeassistant/generated/usb.py
index 2d0dced8965..f58936caf8d 100644
--- a/homeassistant/generated/usb.py
+++ b/homeassistant/generated/usb.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/homeassistant/generated/zeroconf.py b/homeassistant/generated/zeroconf.py
index e00a0710c33..2f3dbaefb17 100644
--- a/homeassistant/generated/zeroconf.py
+++ b/homeassistant/generated/zeroconf.py
@@ -1,4 +1,4 @@
-"""This file is automatically generated.
+"""Automatically generated file.
 
 To update, run python3 -m script.hassfest
 """
diff --git a/script/hassfest/serializer.py b/script/hassfest/serializer.py
index 41f6a554aff..0dd3d35bb15 100644
--- a/script/hassfest/serializer.py
+++ b/script/hassfest/serializer.py
@@ -65,7 +65,7 @@ def format_python(
 ) -> str:
     """Format Python code with Black. Optionally prepend a generator comment."""
     if generator:
-        content = f"""\"\"\"This file is automatically generated.
+        content = f"""\"\"\"Automatically generated file.
 
 To update, run python3 -m {generator}
 \"\"\"