diff --git a/src/main/java/com/omertron/themoviedbapi/model/account/Account.java b/src/main/java/com/omertron/themoviedbapi/model/account/Account.java
index 550e18e05..e6df2038f 100644
--- a/src/main/java/com/omertron/themoviedbapi/model/account/Account.java
+++ b/src/main/java/com/omertron/themoviedbapi/model/account/Account.java
@@ -22,9 +22,8 @@ package com.omertron.themoviedbapi.model.account;
 import com.omertron.themoviedbapi.model.AbstractJsonMapping;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.omertron.themoviedbapi.interfaces.Identification;
-import java.io.Serializable;
 
-public class Account extends AbstractJsonMapping implements Serializable, Identification {
+public class Account extends AbstractJsonMapping implements Identification {
 
     private static final long serialVersionUID = 100L;
 
diff --git a/src/main/java/com/omertron/themoviedbapi/model/account/Avatar.java b/src/main/java/com/omertron/themoviedbapi/model/account/Avatar.java
index 0be3466e0..7519f951b 100644
--- a/src/main/java/com/omertron/themoviedbapi/model/account/Avatar.java
+++ b/src/main/java/com/omertron/themoviedbapi/model/account/Avatar.java
@@ -20,8 +20,9 @@
 package com.omertron.themoviedbapi.model.account;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.omertron.themoviedbapi.model.AbstractJsonMapping;
 
-public class Avatar {
+public class Avatar extends AbstractJsonMapping {
 
     @JsonProperty("gravatar")
     private Hash hash = null;
diff --git a/src/main/java/com/omertron/themoviedbapi/model/account/Hash.java b/src/main/java/com/omertron/themoviedbapi/model/account/Hash.java
index 91e82f1d6..21f2a4273 100644
--- a/src/main/java/com/omertron/themoviedbapi/model/account/Hash.java
+++ b/src/main/java/com/omertron/themoviedbapi/model/account/Hash.java
@@ -20,8 +20,9 @@
 package com.omertron.themoviedbapi.model.account;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.omertron.themoviedbapi.model.AbstractJsonMapping;
 
-public class Hash {
+public class Hash extends AbstractJsonMapping {
 
     @JsonProperty("hash")
     private String hash;