diff --git a/src/runtime/utils/index.ts b/src/runtime/utils/index.ts
index f8d3a525..df351a51 100644
--- a/src/runtime/utils/index.ts
+++ b/src/runtime/utils/index.ts
@@ -61,5 +61,5 @@ export function looseToNumber(val: any): any {
 }
 
 export function escapeRegExp(string: string) {
-  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+  return string.replace(/[.*+?^${}()|[\]\\]/g, match => `\\${match}`)
 }