diff --git a/homeassistant/components/ambiclimate/config_flow.py b/homeassistant/components/ambiclimate/config_flow.py
index 85504971489..a6dbe60a761 100644
--- a/homeassistant/components/ambiclimate/config_flow.py
+++ b/homeassistant/components/ambiclimate/config_flow.py
@@ -38,7 +38,7 @@ def register_flow_implementation(hass, client_id, client_secret):
     }
 
 
-@config_entries.HANDLERS.register("ambiclimate")
+@config_entries.HANDLERS.register(DOMAIN)
 class AmbiclimateFlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""
 
diff --git a/homeassistant/components/daikin/__init__.py b/homeassistant/components/daikin/__init__.py
index d0bc109c082..092bbf8866d 100644
--- a/homeassistant/components/daikin/__init__.py
+++ b/homeassistant/components/daikin/__init__.py
@@ -16,12 +16,10 @@ from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 from homeassistant.helpers.typing import HomeAssistantType
 from homeassistant.util import Throttle
 
-from .const import CONF_UUID, KEY_MAC, TIMEOUT
+from .const import CONF_UUID, DOMAIN, KEY_MAC, TIMEOUT
 
 _LOGGER = logging.getLogger(__name__)
 
-DOMAIN = "daikin"
-
 PARALLEL_UPDATES = 0
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
 
diff --git a/homeassistant/components/daikin/config_flow.py b/homeassistant/components/daikin/config_flow.py
index 155fdd18376..619f9c8d1d8 100644
--- a/homeassistant/components/daikin/config_flow.py
+++ b/homeassistant/components/daikin/config_flow.py
@@ -12,12 +12,12 @@ import voluptuous as vol
 from homeassistant import config_entries
 from homeassistant.const import CONF_API_KEY, CONF_HOST, CONF_PASSWORD
 
-from .const import CONF_UUID, KEY_MAC, TIMEOUT
+from .const import CONF_UUID, DOMAIN, KEY_MAC, TIMEOUT
 
 _LOGGER = logging.getLogger(__name__)
 
 
-@config_entries.HANDLERS.register("daikin")
+@config_entries.HANDLERS.register(DOMAIN)
 class FlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""
 
diff --git a/homeassistant/components/daikin/const.py b/homeassistant/components/daikin/const.py
index 00bbbefd051..5b4bdd28331 100644
--- a/homeassistant/components/daikin/const.py
+++ b/homeassistant/components/daikin/const.py
@@ -14,6 +14,8 @@ from homeassistant.const import (
     TEMP_CELSIUS,
 )
 
+DOMAIN = "daikin"
+
 ATTR_TARGET_TEMPERATURE = "target_temperature"
 ATTR_INSIDE_TEMPERATURE = "inside_temperature"
 ATTR_OUTSIDE_TEMPERATURE = "outside_temperature"
diff --git a/homeassistant/components/mqtt/config_flow.py b/homeassistant/components/mqtt/config_flow.py
index e19aaecc3db..5e5b8c54cf2 100644
--- a/homeassistant/components/mqtt/config_flow.py
+++ b/homeassistant/components/mqtt/config_flow.py
@@ -27,11 +27,12 @@ from .const import (
     DEFAULT_BIRTH,
     DEFAULT_DISCOVERY,
     DEFAULT_WILL,
+    DOMAIN,
 )
 from .util import MQTT_WILL_BIRTH_SCHEMA
 
 
-@config_entries.HANDLERS.register("mqtt")
+@config_entries.HANDLERS.register(DOMAIN)
 class FlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""
 
diff --git a/homeassistant/components/point/config_flow.py b/homeassistant/components/point/config_flow.py
index aaefc45bc9c..1f3cf2a751d 100644
--- a/homeassistant/components/point/config_flow.py
+++ b/homeassistant/components/point/config_flow.py
@@ -40,7 +40,7 @@ def register_flow_implementation(hass, domain, client_id, client_secret):
     }
 
 
-@config_entries.HANDLERS.register("point")
+@config_entries.HANDLERS.register(DOMAIN)
 class PointFlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""
 
diff --git a/homeassistant/components/tellduslive/config_flow.py b/homeassistant/components/tellduslive/config_flow.py
index aabbf88ee1c..33a02cd1f16 100644
--- a/homeassistant/components/tellduslive/config_flow.py
+++ b/homeassistant/components/tellduslive/config_flow.py
@@ -29,7 +29,7 @@ KEY_TOKEN_SECRET = "token_secret"
 _LOGGER = logging.getLogger(__name__)
 
 
-@config_entries.HANDLERS.register("tellduslive")
+@config_entries.HANDLERS.register(DOMAIN)
 class FlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""
 
diff --git a/homeassistant/components/tradfri/config_flow.py b/homeassistant/components/tradfri/config_flow.py
index 7947c3ad6de..e02ac69de36 100644
--- a/homeassistant/components/tradfri/config_flow.py
+++ b/homeassistant/components/tradfri/config_flow.py
@@ -15,6 +15,7 @@ from .const import (
     CONF_IDENTITY,
     CONF_IMPORT_GROUPS,
     CONF_KEY,
+    DOMAIN,
     KEY_SECURITY_CODE,
 )
 
@@ -28,7 +29,7 @@ class AuthError(Exception):
         self.code = code
 
 
-@config_entries.HANDLERS.register("tradfri")
+@config_entries.HANDLERS.register(DOMAIN)
 class FlowHandler(config_entries.ConfigFlow):
     """Handle a config flow."""