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 8bb02cd6..25313cf0 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
@@ -1025,14 +1025,14 @@ else
             //
             // 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(/(^|[^\\])(`{3})([^\r]*?[^`])\2(?!`)/gm,
                 function (wholeMatch, m1, m2, m3, m4) {
                     var c = m3;
-                    c = c.replace(/^([ \t]*)/gm, ""); // leading whitespace
-                    c = c.replace(/[ \t]*$/gm, ""); // trailing whitespace
+                    c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
+                    c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
                     c = _EncodeCode(c);
+                    // Set to use 'm' multiline option.
                     c = c.replace(/:\/\//gm, "~P"); // to prevent auto-linking. Not necessary in code *blocks*, but in code spans. Will be converted back after the auto-linker runs.
                     return m1 + hashBlock("<pre>`" + c + "</pre>");
                 }