diff --git a/.eslintrc.js b/.eslintrc.js
index b47545f..6f3416f 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -14,7 +14,8 @@ module.exports = {
   "globals": {
     "$": true,
     "Rails": true,
-    "Vue": true
+    "Vue": true,
+    "relativeUrlRoot": true
   },
   "rules": {
     "indent": [
diff --git a/app/javascript/packs/codemirror.js b/app/javascript/packs/codemirror.js
index f5433f8..ee56818 100644
--- a/app/javascript/packs/codemirror.js
+++ b/app/javascript/packs/codemirror.js
@@ -43,7 +43,7 @@ CodeMirror.defineMode("fluentd", function() {
           stream.eatWhile(/[^ \t#]/);
           state.context =  "inner-definition-keyword-appeared";
           return "variable";
-        case "inner-definition-keyword-appeared":
+        case "inner-definition-keyword-appeared": {
           let eatBuiltin = function(stream, state) {
             stream.eatWhile(/[^#]/);
             if (stream.current().match(/\\$/)) {
@@ -55,6 +55,7 @@ CodeMirror.defineMode("fluentd", function() {
           eatBuiltin(stream, state);
           state.context = "inner-definition";
           return "builtin";
+        }
         default:
           stream.eat(/[^<>#]+/);
           return "string";
diff --git a/app/javascript/packs/grep_container.js b/app/javascript/packs/grep_container.js
index 2554cc0..90640c6 100644
--- a/app/javascript/packs/grep_container.js
+++ b/app/javascript/packs/grep_container.js
@@ -16,7 +16,7 @@ const GrepContainer = {
     return {
       grepType: "regexp",
       patterns: [true],
-    }
+    };
   },
   filters: {
     humanize: function(value) {
diff --git a/app/javascript/packs/grep_pattern.js b/app/javascript/packs/grep_pattern.js
index 5e8c715..0d73f89 100644
--- a/app/javascript/packs/grep_pattern.js
+++ b/app/javascript/packs/grep_pattern.js
@@ -14,7 +14,7 @@ const GrepPattern = {
     return {
       key: null,
       pattern: null,
-    }
+    };
   },
 
   filters: {
diff --git a/app/javascript/packs/settings.js b/app/javascript/packs/settings.js
index 6482417..c3f6efb 100644
--- a/app/javascript/packs/settings.js
+++ b/app/javascript/packs/settings.js
@@ -141,7 +141,7 @@ window.addEventListener("load", () => {
             if (_.isEmpty(data[label])) {
               this.$delete(this.sections, label);
             }
-          })
+          });
           if (_.isEmpty(data["ROOT"])) {
             this.$set(this.sections, "ROOT", []);
           }
diff --git a/app/javascript/packs/store/index.js b/app/javascript/packs/store/index.js
index 7cd970f..7ce3f74 100644
--- a/app/javascript/packs/store/index.js
+++ b/app/javascript/packs/store/index.js
@@ -1,3 +1,4 @@
+/* global process:true */
 import Vue from "vue/dist/vue.esm";
 import Vuex from "vuex/dist/vuex.esm";
 import { createNamespaceHelpers } from "vuex/dist/vuex.esm";
@@ -5,7 +6,7 @@ import createLogger from "vuex/dist/logger";
 
 Vue.use(Vuex);
 
-const debug = process.env.NODE_ENV !== 'production';
+const debug = process.env.NODE_ENV !== "production";
 
 import parserParams from "./modules/parser_params";