diff --git a/.eslintrc.es5.json b/.eslintrc.es5.json
index 88829bfaba..51e2286deb 100644
--- a/.eslintrc.es5.json
+++ b/.eslintrc.es5.json
@@ -25,7 +25,6 @@
     "new-cap": 0,
     "no-continue": 0,
     "no-new": 0,
-    "space-unary-ops": 0,
     "no-redeclare": 0,
     "no-console": 0,
     "no-empty": 0,
diff --git a/assets/js/src/form_editor/form_editor.js b/assets/js/src/form_editor/form_editor.js
index ff5f535314..17930389bf 100644
--- a/assets/js/src/form_editor/form_editor.js
+++ b/assets/js/src/form_editor/form_editor.js
@@ -333,7 +333,7 @@ var WysijaForm = {
       };
     // body
     WysijaForm.getBlocks().each(function (b) {
-      var block_data = (typeof(b.block['save']) === 'function') ? b.block.save() : null;
+      var block_data = (typeof (b.block['save']) === 'function') ? b.block.save() : null;
 
       if(block_data !== null) {
         // set block position
@@ -891,7 +891,7 @@ WysijaForm.Block = window.Class.create({
         WysijaForm.toggleWidgets();
 
         // optional callback execution after completely removing block
-        if(callback !== undefined && typeof(callback) === 'function') {
+        if(callback !== undefined && typeof (callback) === 'function') {
           callback();
         }
 
diff --git a/assets/js/src/subscribers/importExport/import.js b/assets/js/src/subscribers/importExport/import.js
index 3467f60ca0..2cd80213a8 100644
--- a/assets/js/src/subscribers/importExport/import.js
+++ b/assets/js/src/subscribers/importExport/import.js
@@ -895,7 +895,7 @@ define(
                   for (var format in allowedDateFormats) {
                     var testedFormat = allowedDateFormats[format];
                     if (Moment(firstRowData, testedFormat, true).isValid()) {
-                      var validationRule = (typeof(testedFormat) === 'function') ?
+                      var validationRule = (typeof (testedFormat) === 'function') ?
                         'datetime' :
                         testedFormat;
                       // set validation on the column element