diff --git a/homeassistant/components/modbus/strings.json b/homeassistant/components/modbus/strings.json
index 7b55022645e..347549dc837 100644
--- a/homeassistant/components/modbus/strings.json
+++ b/homeassistant/components/modbus/strings.json
@@ -2,11 +2,11 @@
   "services": {
     "reload": {
       "name": "[%key:common::action::reload%]",
-      "description": "Reloads all modbus entities."
+      "description": "Reloads all Modbus entities."
     },
     "write_coil": {
       "name": "Write coil",
-      "description": "Writes to a modbus coil.",
+      "description": "Writes to a Modbus coil.",
       "fields": {
         "address": {
           "name": "Address",
@@ -17,8 +17,8 @@
           "description": "State to write."
         },
         "slave": {
-          "name": "Slave",
-          "description": "Address of the modbus unit/slave."
+          "name": "Server",
+          "description": "Address of the Modbus unit/server."
         },
         "hub": {
           "name": "Hub",
@@ -28,7 +28,7 @@
     },
     "write_register": {
       "name": "Write register",
-      "description": "Writes to a modbus holding register.",
+      "description": "Writes to a Modbus holding register.",
       "fields": {
         "address": {
           "name": "[%key:component::modbus::services::write_coil::fields::address::name%]",