diff --git a/homeassistant/components/html5/const.py b/homeassistant/components/html5/const.py
new file mode 100644
index 00000000000..1d0689511b2
--- /dev/null
+++ b/homeassistant/components/html5/const.py
@@ -0,0 +1,3 @@
+"""Constants for the HTML5 component."""
+DOMAIN = "html5"
+SERVICE_DISMISS = "dismiss"
diff --git a/homeassistant/components/html5/notify.py b/homeassistant/components/html5/notify.py
index 18b7ff27ab4..481a00e96e1 100644
--- a/homeassistant/components/html5/notify.py
+++ b/homeassistant/components/html5/notify.py
@@ -34,17 +34,16 @@ from homeassistant.components.notify import (
     ATTR_TARGET,
     ATTR_TITLE,
     ATTR_TITLE_DEFAULT,
-    DOMAIN,
     PLATFORM_SCHEMA,
     BaseNotificationService,
 )
 
+from .const import DOMAIN, SERVICE_DISMISS
+
 _LOGGER = logging.getLogger(__name__)
 
 REGISTRATIONS_FILE = "html5_push_registrations.conf"
 
-SERVICE_DISMISS = "html5_dismiss"
-
 ATTR_GCM_SENDER_ID = "gcm_sender_id"
 ATTR_GCM_API_KEY = "gcm_api_key"
 ATTR_VAPID_PUB_KEY = "vapid_pub_key"
diff --git a/homeassistant/components/html5/services.yaml b/homeassistant/components/html5/services.yaml
index e69de29bb2d..5fd068a64dc 100644
--- a/homeassistant/components/html5/services.yaml
+++ b/homeassistant/components/html5/services.yaml
@@ -0,0 +1,9 @@
+dismiss:
+  description: Dismiss a html5 notification.
+  fields:
+    target:
+      description: An array of targets. Optional.
+      example: ['my_phone', 'my_tablet']
+    data:
+      description: Extended information of notification. Supports tag. Optional.
+      example: '{ "tag": "tagname" }'
diff --git a/homeassistant/components/notify/services.yaml b/homeassistant/components/notify/services.yaml
index 1b7944cc7da..23b1c968c4a 100644
--- a/homeassistant/components/notify/services.yaml
+++ b/homeassistant/components/notify/services.yaml
@@ -16,16 +16,6 @@ notify:
       description: Extended information for notification. Optional depending on the platform.
       example: platform specific
 
-html5_dismiss:
-  description: Dismiss a html5 notification.
-  fields:
-    target:
-      description: An array of targets. Optional.
-      example: ['my_phone', 'my_tablet']
-    data:
-      description: Extended information of notification. Supports tag. Optional.
-      example: '{ "tag": "tagname" }'
-
 apns_register:
   description: Registers a device to receive push notifications.
   fields: