diff --git a/src/main/java/com/ntlab/irisserver/entities/Room.java b/src/main/java/com/ntlab/irisserver/entities/Room.java
index d533681..2e891d7 100644
--- a/src/main/java/com/ntlab/irisserver/entities/Room.java
+++ b/src/main/java/com/ntlab/irisserver/entities/Room.java
@@ -18,9 +18,7 @@
         //String ownerName = null;
 
 
-        @JsonProperty("redMaster")
         private Member redMaster;
-        @JsonProperty("blueMaster")
         private Member blueMaster;
         Map<String,Member> members= new HashMap<>();
         Map<Integer, Drawing> drawings = new HashMap<>();