diff --git a/web/.eslintrc b/web/.eslintrc
index 9991ff4d..3192a537 100644
--- a/web/.eslintrc
+++ b/web/.eslintrc
@@ -97,6 +97,7 @@
     "react/jsx-key": "error",
     "no-console": "error",
     "eqeqeq": "error",
+    "keyword-spacing": "error",
 
     "react/prop-types": "off",
     "react/display-name": "off",
diff --git a/web/src/App.js b/web/src/App.js
index f99b0b6e..6d6da88c 100644
--- a/web/src/App.js
+++ b/web/src/App.js
@@ -527,7 +527,7 @@ class App extends Component {
   }
 
   renderRouter() {
-    return(
+    return (
       <div>
         <Switch>
           <Route exact path="/result" render={(props) => this.renderHomeIfLoggedIn(<ResultPage {...props} />)} />
@@ -618,7 +618,7 @@ class App extends Component {
         </div>
       );
     } else {
-      return(
+      return (
         <div>
           <Header style={{padding: "0", marginBottom: "3px"}}>
             {
diff --git a/web/src/Setting.js b/web/src/Setting.js
index 6e3e3073..6b793c2a 100644
--- a/web/src/Setting.js
+++ b/web/src/Setting.js
@@ -450,9 +450,9 @@ export function trim(str, ch) {
   let start = 0;
   let end = str.length;
 
-  while(start < end && str[start] === ch) {++start;}
+  while (start < end && str[start] === ch) {++start;}
 
-  while(end > start && str[end - 1] === ch) {--end;}
+  while (end > start && str[end - 1] === ch) {--end;}
 
   return (start > 0 || end < str.length) ? str.substring(start, end) : str;
 }
diff --git a/web/src/auth/SignupPage.js b/web/src/auth/SignupPage.js
index f4c1b40c..2b9e58dc 100644
--- a/web/src/auth/SignupPage.js
+++ b/web/src/auth/SignupPage.js
@@ -584,9 +584,9 @@ class SignupPage extends React.Component {
           &nbsp;&nbsp;{i18next.t("signup:Have account?")}&nbsp;
           <a onClick={() => {
             const linkInStorage = sessionStorage.getItem("signinUrl");
-            if(linkInStorage !== null && linkInStorage !== "") {
+            if (linkInStorage !== null && linkInStorage !== "") {
               Setting.goToLink(linkInStorage);
-            }else{
+            } else {
               Setting.goToLogin(this, application);
             }
           }}>