diff --git a/src/main/java/com/ntlab/irisserver/entities/Room.java b/src/main/java/com/ntlab/irisserver/entities/Room.java
index 8ff70e3..b77b4cf 100644
--- a/src/main/java/com/ntlab/irisserver/entities/Room.java
+++ b/src/main/java/com/ntlab/irisserver/entities/Room.java
@@ -141,6 +141,11 @@
                 m.setNickname(nick);
                 members.put(nick,m);
         }
+
+        public void deleteMember(String nick) {
+                members.remove(nick);
+        }
+
         public int getStateRest() {
                 return 0;
         }