diff --git a/online-editor.js b/online-editor.js
index 1e332c7..823eafb 100644
--- a/online-editor.js
+++ b/online-editor.js
@@ -3,7 +3,7 @@ const besUrl = 'http://localhost:225/api/v2/check'
 let besEditors = [] // Collection of all grammar checking services in the document
 
 class BesEditor {
-  constructor(edit, isCkeditor) {
+  constructor(edit, CKEditorInstance) {
     this.el = edit
     this.timer = null
     this.children = []
@@ -11,10 +11,8 @@ class BesEditor {
     this.correctionPanel = correctionPanel
     this.scrollPanel = scrollPanel
     this.offsetTop = null
-    // TODO: consider simplfing ckeditor handling by using a single constructor parameter
-    this.isCKeditor = !!isCkeditor
-    this.CKEditorInstance = isCkeditor
-    edit.classList.add('bes-online-editor')
+    this.CKEditorInstance = CKEditorInstance
+    if (!this.CKEditorInstance) edit.classList.add('bes-online-editor')
     this.originalSpellcheck = edit.spellcheck
     edit.spellcheck = false
     this.proof(edit)
@@ -28,11 +26,11 @@ class BesEditor {
    * Registers grammar checking service
    *
    * @param {Element} edit DOM element to register grammar checking service for
-   * @param {Boolean} isCkeditor Enable CKEditor tweaks
+   * @param {CKEditorInstance} CKEditorInstance Enable CKEditor tweaks
    * @returns {BesEditor} Grammar checking service instance
    */
-  static register(edit, isCkeditor) {
-    return new BesEditor(edit, isCkeditor)
+  static register(edit, CKEditorInstance) {
+    return new BesEditor(edit, CKEditorInstance)
   }
 
   /**
@@ -172,7 +170,7 @@ class BesEditor {
                 this.markProofed(el, matches)
 
                 // This is a solution for displaying mistakes in CKEditor. It is not the best solution, but it works for now.
-                if (this.isCKeditor) {
+                if (this.CKEditorInstance) {
                   const resizeEvent = new Event('resize')
                   window.dispatchEvent(resizeEvent)
                 }
@@ -544,7 +542,7 @@ class BesEditor {
       replacement +
       text.substring(match.offset + match.length)
     el.textContent = newText
-    if (editor.isCKeditor) {
+    if (editor.CKEditorInstance) {
       const { CKEditorInstance } = editor
       CKEditorInstance.model.change(writer => {
         // Find the corresponding element in the model.