diff --git a/homeassistant/components/goalzero/strings.json b/homeassistant/components/goalzero/strings.json
index d94f5219607..c6d85bd4c10 100644
--- a/homeassistant/components/goalzero/strings.json
+++ b/homeassistant/components/goalzero/strings.json
@@ -6,6 +6,9 @@
         "data": {
           "host": "[%key:common::config_flow::data::host%]",
           "name": "[%key:common::config_flow::data::name%]"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your Goal Zero Yeti."
         }
       },
       "confirm_discovery": {
diff --git a/homeassistant/components/harmony/strings.json b/homeassistant/components/harmony/strings.json
index c9c7a559758..f6862ca3c83 100644
--- a/homeassistant/components/harmony/strings.json
+++ b/homeassistant/components/harmony/strings.json
@@ -7,6 +7,9 @@
         "data": {
           "host": "[%key:common::config_flow::data::host%]",
           "name": "Hub Name"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your Logitech Harmony Hub."
         }
       },
       "link": {
diff --git a/homeassistant/components/heos/strings.json b/homeassistant/components/heos/strings.json
index 7bd362cf3d7..df18fc7834a 100644
--- a/homeassistant/components/heos/strings.json
+++ b/homeassistant/components/heos/strings.json
@@ -6,6 +6,9 @@
         "description": "Please enter the host name or IP address of a Heos device (preferably one connected via wire to the network).",
         "data": {
           "host": "[%key:common::config_flow::data::host%]"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your HEOS device."
         }
       }
     },