diff --git a/browser/components/CodeEditor.js b/browser/components/CodeEditor.js
index d32d3240..4e545c4d 100644
--- a/browser/components/CodeEditor.js
+++ b/browser/components/CodeEditor.js
@@ -201,7 +201,7 @@ export default class CodeEditor extends React.Component {
   insertImageMd (imageMd) {
     const textarea = this.editor.getInputField()
     const cm = this.editor
-    textarea.value = `${textarea.value.substr(0, textarea.selectionStart)}${imageMd}${textarea.value.substr(textarea.selectionEnd)}`
+    cm.replaceSelection(`${textarea.value.substr(0, textarea.selectionStart)}${imageMd}${textarea.value.substr(textarea.selectionEnd)}`)
   }
 
   render () {