diff --git a/homeassistant/components/mqtt/strings.json b/homeassistant/components/mqtt/strings.json
index 2c9e8eede27..95cef3119b4 100644
--- a/homeassistant/components/mqtt/strings.json
+++ b/homeassistant/components/mqtt/strings.json
@@ -285,9 +285,9 @@
         "invalid_uom": "The unit of measurement \"{unit_of_measurement}\" is not supported by the selected device class, please either remove the device class, select a device class which supports \"{unit_of_measurement}\", or pick a supported unit of measurement from the list",
         "invalid_url": "Invalid URL",
         "options_not_allowed_with_state_class_or_uom": "The 'Options' setting is not allowed when state class or unit of measurement are used",
-        "options_device_class_enum": "The 'Options' setting must be used with the Enumeration device class'. If you continue, the existing options will be reset",
+        "options_device_class_enum": "The 'Options' setting must be used with the Enumeration device class. If you continue, the existing options will be reset",
         "options_with_enum_device_class": "Configure options for the enumeration sensor",
-        "uom_required_for_device_class": "The selected device device class requires a unit"
+        "uom_required_for_device_class": "The selected device class requires a unit"
       }
     }
   },