diff --git a/online-editor.js b/online-editor.js
index 0da9713..6d1f3a9 100644
--- a/online-editor.js
+++ b/online-editor.js
@@ -27,7 +27,7 @@ class BesEditor {
           if (this.isProofed(el)) {
             return [{ text: '<' + el.tagName + '/>', el: el, markup: true }]
           }
-          this.clearAllMistakes(el)
+          this.clearMistakeMarkup(el)
           let data = []
           for (const el2 of el.childNodes) {
             data = data.concat(await this.proof(el2))
@@ -96,7 +96,7 @@ class BesEditor {
   
                   matches.push({
                     range: range,
-                    rects: this.addMistake(range, match),
+                    rects: this.addMistakeMarkup(range, match),
                     match: match
                   })
                 })
@@ -175,7 +175,7 @@ class BesEditor {
   }
 
   // Remove all grammar mistakes markup for given block element.
-  clearAllMistakes(el) {
+  clearMistakeMarkup(el) {
     let filteredChildren = this.children.filter(child => child.elements === el)
     if (!filteredChildren.length) return
 
@@ -197,7 +197,7 @@ class BesEditor {
   }
 
   // Adds grammar mistake markup
-  addMistake(range, match) {
+  addMistakeMarkup(range, match) {
     const clientRects = range.getClientRects()
     for (let i = 0, n = clientRects.length; i < n; ++i) {
       const rect = clientRects[i]
@@ -301,9 +301,9 @@ window.onload = () => {
 window.onresize = () => {
   besEditors.forEach(editor => {
     editor.children.forEach(child => {
-      editor.clearAllMistakes(child.elements)
+      editor.clearMistakeMarkup(child.elements)
       child.matches.forEach(match => {
-        match.rects = editor.addMistake(match.range, match)
+        match.rects = editor.addMistakeMarkup(match.range, match)
       })
     })
   })