diff --git a/dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/FileNetworkerTest.java b/dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/FileNetworkerTest.java
index 980718e88687..621e3c4aa6af 100644
--- a/dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/FileNetworkerTest.java
+++ b/dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/FileNetworkerTest.java
@@ -51,7 +51,7 @@ public void tearDown() throws Exception {
 
     @Test
     public void testJoin() throws RemotingException, InterruptedException, IOException {
-        final String groupURL = "file://" + folder.newFile();
+        final String groupURL = "file:///" + folder.newFile();
 
         FileNetworker networker = new FileNetworker();
         Group group = networker.lookup(URL.valueOf(groupURL));