diff --git a/pkg/http/mux.go b/pkg/http/mux.go
index 19d1195e..46a76b02 100644
--- a/pkg/http/mux.go
+++ b/pkg/http/mux.go
@@ -66,7 +66,11 @@ func (m *prefixMuxMap[T]) get(path string) (val T, exist bool) {
 
 // match assume pattern like `/core.v1.AuthenticateService/login`
 func (m *prefixMuxMap[T]) match(pattern string) (val T, exist bool) {
-	path, _ := strings.CutPrefix(pattern, m.prefix)
+	path, found := strings.CutPrefix(pattern, m.prefix)
+	if !found {
+		exist = false
+		return
+	}
 	idx := strings.IndexByte(path[1:], '/')
 	if idx < 0 {
 		return
diff --git a/pkg/http/mux_test.go b/pkg/http/mux_test.go
index 7069e9da..e67d5f47 100644
--- a/pkg/http/mux_test.go
+++ b/pkg/http/mux_test.go
@@ -66,5 +66,8 @@ var _ = g.Describe("Mux", g.Ordered, func() {
 		val, exist = pmm.match("/connect/core.v1.AuthenticateService/logout")
 		m.Expect(val).To(m.Equal(1))
 		m.Expect(exist).To(m.BeTrue())
+
+		_, exist = pmm.match("/core.v1.AuthenticateService/logout")
+		m.Expect(exist).To(m.BeFalse())
 	})
 })