diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/LoginResponseJson.java b/app/src/main/java/org/ntlab/acanthus_client/entities/LoginResponseJson.java
index 078e70f..2270d30 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/LoginResponseJson.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/LoginResponseJson.java
@@ -6,6 +6,9 @@
     private Integer uid;
     private String token;
 
+    public LoginResponseJson() {
+    }
+
     //-----------------------------------------------------------------
     // getter
     public Integer getUid() {