diff --git a/src/router/url/url-matcher.js b/src/router/url/url-matcher.js
index c8da9ab56..bf72e58c3 100644
--- a/src/router/url/url-matcher.js
+++ b/src/router/url/url-matcher.js
@@ -209,7 +209,7 @@ export class UrlMatcher {
     const placeholder =
       /([:*])([\w[\]]+)|\{([\w[\]]+)(?::\s*((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g;
     const searchPlaceholder =
-      /([:]?)([\w[\].-]+)|\{([\w[\].-]+)(?::\s*((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g;
+      /([:]?)([\w[\].-]+)|\{([\w[\].-]+)(?::\s*((?:[^{\\}]+|\\.|{(?:[^{\\}]+|\\.)*})+))?\}/g;
     const patterns = [];
     let last = 0;
     let matchArray;