diff --git a/client/dom/index.js b/client/dom/index.js
index e2b888b6..4dde2d1f 100644
--- a/client/dom/index.js
+++ b/client/dom/index.js
@@ -40,7 +40,7 @@ const loadRemote = require('./load-remote');
 const selectByPattern = require('./select-by-pattern');
 
 function CmdProto() {
-    let CurrentInfo = {};
+    const CurrentInfo = {};
     
     const Cmd = this;
     const SELECTED_FILE = 'selected-file';
diff --git a/client/modules/menu.js b/client/modules/menu.js
index 02a82bd6..43f280bd 100644
--- a/client/modules/menu.js
+++ b/client/modules/menu.js
@@ -199,7 +199,7 @@ function beforeShow(callback, params) {
     const {
         name
     } = params;
-    let el = DOM.getCurrentByPosition({
+    const el = DOM.getCurrentByPosition({
         x: params.x,
         y: params.y
     });
diff --git a/client/modules/operation/index.js b/client/modules/operation/index.js
index 12927bc5..656322d8 100644
--- a/client/modules/operation/index.js
+++ b/client/modules/operation/index.js
@@ -272,7 +272,7 @@ function deleteSilent(files = DOM.getActiveFiles()) {
             const names = Info.files.map(DOM.getCurrentName);
             const isCurrent = names.includes(currentName);
             
-            let name = isCurrent ? currentName : nextCurrentName;
+            const name = isCurrent ? currentName : nextCurrentName;
             
             DOM.setCurrentByName(name);
         });
@@ -289,7 +289,6 @@ function _processFiles(options, data) {
     let files;
     let panel;
     let shouldAsk;
-    let sameName;
     let ok;
     
     let from = '';
@@ -317,7 +316,7 @@ function _processFiles(options, data) {
     
     const name = names[0];
     
-    sameName = DOM.getCurrentByName(name, panel);
+    const sameName = DOM.getCurrentByName(name, panel);
     
     if (!data && noFilesCheck())
         return;
diff --git a/common/util.js b/common/util.js
index 77f0a6c6..52f76827 100644
--- a/common/util.js
+++ b/common/util.js
@@ -63,7 +63,7 @@ module.exports.findObjByNameInArr = (array, name) => {
         throw Error('name should be string!');
     
     array.some((item) => {
-        let is = item.name === name;
+        const is = item.name === name;
         const isArray = Array.isArray(item);
         
         if (is) {