diff --git a/constant/metadata.go b/constant/metadata.go
index 633487ad..b58847ff 100644
--- a/constant/metadata.go
+++ b/constant/metadata.go
@@ -127,9 +127,9 @@ func (m *Metadata) SourceDetail() string {
 		return fmt.Sprintf("[%s]", ClashName)
 	}
 
-	if m.Process != "" && *m.Uid != -1 {
+	if m.Process != "" && m.Uid != nil {
 		return fmt.Sprintf("%s(%s, uid=%d)", m.SourceAddress(), m.Process, *m.Uid)
-	} else if *m.Uid != -1 {
+	} else if m.Uid != nil {
 		return fmt.Sprintf("%s(uid=%d)", m.SourceAddress(), *m.Uid)
 	} else if m.Process != "" {
 		return fmt.Sprintf("%s(%s)", m.SourceAddress(), m.Process)
diff --git a/tunnel/tunnel.go b/tunnel/tunnel.go
index a4b78558..3c74e14d 100644
--- a/tunnel/tunnel.go
+++ b/tunnel/tunnel.go
@@ -403,7 +403,9 @@ func match(metadata *C.Metadata) (C.Proxy, C.Rule, error) {
 			} else {
 				metadata.Process = filepath.Base(path)
 				metadata.ProcessPath = path
-				metadata.Uid = &uid
+				if uid != -1 {
+					metadata.Uid = &uid
+				}
 				processFound = true
 			}
 		}