diff --git a/packages/jest-regex-util/src/index.js b/packages/jest-regex-util/src/index.js
index 635a1931f0ff..2ca4d7f99b39 100644
--- a/packages/jest-regex-util/src/index.js
+++ b/packages/jest-regex-util/src/index.js
@@ -23,7 +23,7 @@ export const escapeStrForRegex = (string: string) =>
 
 export const replacePathSepForRegex = (string: string) => {
   if (path.sep === '\\') {
-    return string.replace(/(\/|\\(?![[\]{}()*+?.^$|]))/g, '\\\\');
+    return string.replace(/(\/|\\(?![[\]{}()*+?.^$|\\]))/g, '\\\\');
   }
   return string;
 };