diff --git a/searx/static/themes/simple/.eslintrc.json b/searx/static/themes/simple/.eslintrc.json
index 069111bca..57d227f3d 100644
--- a/searx/static/themes/simple/.eslintrc.json
+++ b/searx/static/themes/simple/.eslintrc.json
@@ -9,5 +9,21 @@
         "ecmaVersion": 12
     },
     "rules": {
+        "indent": ["error", 2],
+        "keyword-spacing": ["error", { "before": true, "after": true }],
+        "no-trailing-spaces": 2,
+        "space-before-function-paren": ["error", "always"],
+        "space-infix-ops": "error",
+        "comma-spacing": ["error", { "before": false, "after": true }],
+        "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+        "curly": ["error", "multi-line"],
+        "block-spacing": ["error", "always"],
+        "comma-spacing": ["error", { "before": false, "after": true }],
+        "dot-location": ["error", "property"],
+        "key-spacing": ["error", { "beforeColon": false, "afterColon": true }],
+        "spaced-comment": ["error", "always", {
+            "line": { "markers": ["*package", "!", "/", ",", "="] },
+            "block": { "balanced": true, "markers": ["*package", "!", ",", ":", "::", "flow-include"], "exceptions": ["*"] }
+        }]
     }
 }
diff --git a/searx/static/themes/simple/gruntfile.js b/searx/static/themes/simple/gruntfile.js
index 84f051f23..3602c7457 100644
--- a/searx/static/themes/simple/gruntfile.js
+++ b/searx/static/themes/simple/gruntfile.js
@@ -27,7 +27,8 @@ module.exports = function(grunt) {
     eslint: {
       options: {
         overrideConfigFile: '.eslintrc.json',
-        failOnError: false
+        failOnError: false,
+        fix: grunt.option('fix')
       },
       target: [
         'svg4web.svgo.js',
diff --git a/searx/static/themes/simple/package.json b/searx/static/themes/simple/package.json
index 356230f52..321d44556 100644
--- a/searx/static/themes/simple/package.json
+++ b/searx/static/themes/simple/package.json
@@ -30,6 +30,7 @@
     "all": "npm install && grunt",
     "build": "grunt",
     "eslint": "grunt eslint",
+    "eslint-fix": "grunt eslint --fix",
     "watch": "grunt watch",
     "webfont": "grunt webfont",
     "clean": "rm -Rf node_modules package-lock.json ion.less",