diff --git a/src/resources/hoedown.js b/src/resources/hoedown.js
index 308e8612..625c25cc 100644
--- a/src/resources/hoedown.js
+++ b/src/resources/hoedown.js
@@ -1,3 +1,5 @@
+var VRenderer = 'hoedown';
+
 // Use Marked to highlight code blocks in edit mode.
 marked.setOptions({
     highlight: function(code, lang) {
diff --git a/src/resources/markdown-it.js b/src/resources/markdown-it.js
index 0435c361..4a31f5dd 100644
--- a/src/resources/markdown-it.js
+++ b/src/resources/markdown-it.js
@@ -34,6 +34,8 @@ var getHeadingLevel = function(h) {
     return level;
 }
 
+var VRenderer = 'markdown-it';
+
 // There is a VMarkdownitOption struct passed in.
 // var VMarkdownitOption = { html, breaks, linkify, sub, sup };
 var mdit = window.markdownit({
diff --git a/src/resources/markdown_template.js b/src/resources/markdown_template.js
index 15355043..bbf74c6b 100644
--- a/src/resources/markdown_template.js
+++ b/src/resources/markdown_template.js
@@ -102,6 +102,10 @@ if (typeof VOS == 'undefined') {
     VOS = 'win';
 }
 
+if (typeof VRenderer == 'undefined') {
+    VRenderer = 'markdown-it';
+}
+
 if (typeof handleMathjaxReady == 'undefined') {
     var handleMathjaxReady = function() {};
 }
@@ -1241,13 +1245,15 @@ var renderCodeBlockLineNumber = function() {
         }
     }
 
-    // Delete the last extra row.
-    var tables = document.getElementsByTagName('table');
-    for (var i = 0; i < tables.length; ++i) {
-        var table = tables[i];
-        if (table.classList.contains("hljs-ln")) {
-            var rowCount = table.rows.length;
-            table.deleteRow(rowCount - 1);
+    if (VRenderer != 'marked') {
+        // Delete the last extra row.
+        var tables = document.getElementsByTagName('table');
+        for (var i = 0; i < tables.length; ++i) {
+            var table = tables[i];
+            if (table.classList.contains("hljs-ln")) {
+                var rowCount = table.rows.length;
+                table.deleteRow(rowCount - 1);
+            }
         }
     }
 };
diff --git a/src/resources/marked.js b/src/resources/marked.js
index 78688edf..b9eed7c5 100644
--- a/src/resources/marked.js
+++ b/src/resources/marked.js
@@ -2,6 +2,8 @@ var renderer = new marked.Renderer();
 var toc = []; // Table of contents as a list
 var nameCounter = 0;
 
+var VRenderer = 'marked';
+
 renderer.heading = function(text, level) {
     // Use number to avoid issues with Chinese
     var escapedText = 'toc_' + nameCounter++;
diff --git a/src/resources/showdown.js b/src/resources/showdown.js
index ea04e2a6..d2dc7567 100644
--- a/src/resources/showdown.js
+++ b/src/resources/showdown.js
@@ -1,3 +1,5 @@
+var VRenderer = 'showdown';
+
 var renderer = new showdown.Converter({simplifiedAutoLink: 'true',
                                        excludeTrailingPunctuationFromURLs: 'true',
                                        strikethrough: 'true',