diff --git a/lib/utils.js b/lib/utils.js
index ce9d62d..98399b9 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -14,7 +14,7 @@ exports.escapePipesInTables = str => {
     let line = lines[i];
 
     if (/^\s*\|.*?\|\s*$/.test(line)) {
-      lines[i] = line.replace(/(?<!`)`((?:\\`|[^`])+)`(?!`)/g, m => {
+      lines[i] = line.replace(/(?:[^`])`((?:\\`|[^`])+)`(?!`)/g, m => {
         return m.replace(/\s*\|\s*/g, '\\|');
       });
     }