diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js b/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
index c0a6002e..8bb02cd6 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
@@ -1024,9 +1024,10 @@ else
         function _DoCodeSpansGollum(text) {
             //
             // Gollum wraps code in one pre. Use ` to mark code pre.
+            // Gollum requires exactly three starting and ending `.
             // All regex set to use 'm' multiline option.
             //
-            text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
+            text = text.replace(/(^|[^\\])(`{3})([^\r]*?[^`])\2(?!`)/gm,
                 function (wholeMatch, m1, m2, m3, m4) {
                     var c = m3;
                     c = c.replace(/^([ \t]*)/gm, ""); // leading whitespace