diff --git a/src/main/java/com/corundumstudio/socketio/handler/ClientHead.java b/src/main/java/com/corundumstudio/socketio/handler/ClientHead.java
index dfb1220e0..21a06d9ed 100644
--- a/src/main/java/com/corundumstudio/socketio/handler/ClientHead.java
+++ b/src/main/java/com/corundumstudio/socketio/handler/ClientHead.java
@@ -222,6 +222,7 @@ public void onChannelDisconnect() {
                 clientsBox.remove(state.getChannel());
             }
         }
+        store.del(sessionId.toString());
     }
 
     public HandshakeData getHandshakeData() {