diff --git a/homeassistant/components/google_mail/sensor.py b/homeassistant/components/google_mail/sensor.py
index 8023b9222a0..a65e845095c 100644
--- a/homeassistant/components/google_mail/sensor.py
+++ b/homeassistant/components/google_mail/sensor.py
@@ -21,7 +21,7 @@ SCAN_INTERVAL = timedelta(minutes=15)
 
 SENSOR_TYPE = SensorEntityDescription(
     key="vacation_end_date",
-    name="Vacation end date",
+    translation_key="vacation_end_date",
     icon="mdi:clock",
     device_class=SensorDeviceClass.TIMESTAMP,
 )
diff --git a/homeassistant/components/google_mail/strings.json b/homeassistant/components/google_mail/strings.json
index eb44bffb134..2f76806dfd3 100644
--- a/homeassistant/components/google_mail/strings.json
+++ b/homeassistant/components/google_mail/strings.json
@@ -30,5 +30,12 @@
   },
   "application_credentials": {
     "description": "Follow the [instructions]({more_info_url}) for [OAuth consent screen]({oauth_consent_url}) to give Home Assistant access to your Google Mail. You also need to create Application Credentials linked to your account:\n1. Go to [Credentials]({oauth_creds_url}) and click **Create Credentials**.\n1. From the drop-down list select **OAuth client ID**.\n1. Select **Web application** for the Application Type.\n\n"
+  },
+  "entity": {
+    "sensor": {
+      "vacation_end_date": {
+        "name": "Vacation end date"
+      }
+    }
   }
 }