diff --git a/homeassistant/components/peco/strings.json b/homeassistant/components/peco/strings.json
index cdf5bb497db..c4683056dd7 100644
--- a/homeassistant/components/peco/strings.json
+++ b/homeassistant/components/peco/strings.json
@@ -4,7 +4,7 @@
       "user": {
         "data": {
           "county": "County",
-          "phone_number": "Phone Number"
+          "phone_number": "Phone number"
         },
         "data_description": {
           "county": "County used for outage number retrieval",