diff --git a/app/.eslintrc b/app/.eslintrc
index 6780c75f..d56722dc 100644
--- a/app/.eslintrc
+++ b/app/.eslintrc
@@ -22,7 +22,8 @@
     "strict": ["error", "global"],
     "curly": "warn",
     "quotes": ["warn", "single"],
-    "indent": ["warn", 4]
+    "indent": ["warn", 4],
+    "no-multi-spaces": ["error", {"ignoreEOLComments": true} ]
   },
   "plugins": [
     "react"
diff --git a/app/src/api/building.js b/app/src/api/building.js
index 21a86c25..72e0428c 100644
--- a/app/src/api/building.js
+++ b/app/src/api/building.js
@@ -282,7 +282,7 @@ function unlikeBuilding(building_id, user_id) {
 }
 
 function privateQueryBuildingBBOX(building_id){
-    return  db.one(
+    return db.one(
         `SELECT
             ST_XMin(envelope) as xmin,
             ST_YMin(envelope) as ymin,
diff --git a/app/src/frontend/header.js b/app/src/frontend/header.js
index 2837521d..4aea0fce 100644
--- a/app/src/frontend/header.js
+++ b/app/src/frontend/header.js
@@ -28,7 +28,7 @@ class Header extends React.Component {
                         <Logo/>
                     </span>
                     <button className="navbar-toggler navbar-toggler-right" type="button"
-                        onClick={this.handleClick}   aria-expanded="false" aria-label="Toggle navigation">
+                        onClick={this.handleClick} aria-expanded="false" aria-label="Toggle navigation">
                         <span className="navbar-toggler-icon"></span>
                     </button>
                     <div className={this.state.collapseMenu ? 'collapse navbar-collapse' : 'navbar-collapse'}>
diff --git a/app/src/frontend/overview.js b/app/src/frontend/overview.js
index 87d7c5f6..8d55ee63 100644
--- a/app/src/frontend/overview.js
+++ b/app/src/frontend/overview.js
@@ -16,7 +16,7 @@ const Overview = (props) => {
     }
 
     let title = (props.mode === 'view')? 'View maps' : 'Add or edit data';
-    let back =  (props.mode === 'edit')? `/view/${data_layer}.html` : undefined;
+    let back = (props.mode === 'edit')? `/view/${data_layer}.html` : undefined;
 
     return (
         <Sidebar title={title} back={back}>