diff --git a/src/main/java/com/corundumstudio/socketio/protocol/PacketDecoder.java b/src/main/java/com/corundumstudio/socketio/protocol/PacketDecoder.java
index c3bd95a..016ea5a 100644
--- a/src/main/java/com/corundumstudio/socketio/protocol/PacketDecoder.java
+++ b/src/main/java/com/corundumstudio/socketio/protocol/PacketDecoder.java
@@ -300,22 +300,27 @@ public class PacketDecoder {
             }
         }
     }
-    
-    private String readNamespace(ByteBuf frame){
+
+    private String readNamespace(ByteBuf frame) {
+
         /**
          * namespace post request with url queryString, like
          *  /message?a=1,
          *  /message,
          */
-        int endIndex = frame.bytesBefore((byte)'?');
-        if(endIndex > 0){
-            return readString(frame,endIndex);
+        ByteBuf buffer = frame.slice();
+        // skip this frame
+        frame.readerIndex(frame.readerIndex() + frame.readableBytes());
+
+        int endIndex = buffer.bytesBefore((byte) '?');
+        if (endIndex > 0) {
+            return readString(buffer, endIndex);
         }
-        endIndex = frame.bytesBefore((byte)',');
-        if(endIndex > 0){
-            return readString(frame,endIndex);
+        endIndex = buffer.bytesBefore((byte) ',');
+        if (endIndex > 0) {
+            return readString(buffer, endIndex);
         }
-        return readString(frame);
+        return readString(buffer);
     }
 
 }