diff --git a/browser/components/CodeEditor.js b/browser/components/CodeEditor.js
index 96379883..d17987ce 100644
--- a/browser/components/CodeEditor.js
+++ b/browser/components/CodeEditor.js
@@ -166,9 +166,9 @@ export default class CodeEditor extends React.Component {
 
   handleDropImage (e) {
     e.preventDefault()
-    let imagePath = e.dataTransfer.files[0].path
-    let filename = path.basename(imagePath)
-    let imageMd = `![${encodeURI(filename)}](${encodeURI(imagePath)})`
+    const imagePath = e.dataTransfer.files[0].path
+    const filename = path.basename(imagePath)
+    const imageMd = `![${encodeURI(filename)}](${encodeURI(imagePath)})`
     this.insertImage(imageMd)
   }