diff --git a/bigpoint_dyntype.c b/bigpoint_dyntype.c
index 5fff3c0..d451e9c 100644
--- a/bigpoint_dyntype.c
+++ b/bigpoint_dyntype.c
@@ -4,6 +4,7 @@
 #include <json/json.h>
 
 #include "bigpoint_dyntype.h"
+#include "bigpoint_hash.h"
 
 
 static
@@ -24,10 +25,11 @@ __construct(struct BIGPOINT_DYNTYPE * _this, va_list * params)
             break;
 
         case BIGPOINT_DYNTYPE_HASH:
+            (_this->data)._hash = new(BIGPOINT_HASH);
             break;
 
         default:
-            (_this->data)._object = NULL;
+            (_this->data)._hash = NULL;
     }
 }
 
@@ -57,7 +59,7 @@ __jsonConst(struct BIGPOINT_DYNTYPE * _this, struct json_object * json)
         default:
             _this->type = BIGPOINT_DYNTYPE_NULL;
             _this->size = 0;
-            (_this->data)._object = NULL;
+            (_this->data)._hash = NULL;
     }
 }
 
diff --git a/bigpoint_dyntype.h b/bigpoint_dyntype.h
index c91ea5f..c1475b8 100644
--- a/bigpoint_dyntype.h
+++ b/bigpoint_dyntype.h
@@ -5,6 +5,10 @@
 
 #include "bigpoint_cclass.h"
 
+struct BIGPOINT_DYNTYPE;
+
+#include "bigpoint_hash.h"
+
 
 enum BIGPOINT_DYNTYPE_TYPES {
     BIGPOINT_DYNTYPE_NULL = 0,
@@ -26,7 +30,8 @@ struct BIGPOINT_DYNTYPE {
         int _int;
         double _float;
         char * _string;
-        void * _object;
+        struct BIGPOINT_DYNTYPE ** _array;
+        struct BIGPOINT_HASH * _hash;
     } data;
 };
 
diff --git a/tests/hash_test.c b/tests/hash_test.c
index 644ebb8..71ba5fe 100644
--- a/tests/hash_test.c
+++ b/tests/hash_test.c
@@ -16,6 +16,7 @@ main(int argc, char * argv[])
 {
     struct BIGPOINT_DYNTYPE * dyn;
     struct BIGPOINT_HASH *    hash = new(BIGPOINT_HASH);
+    struct json_object *      json;
 
     dyn = new(BIGPOINT_DYNTYPE, BIGPOINT_DYNTYPE_INT, sizeof(int), 123);
     bigpoint_hash_set(hash, TEST_KEY1, dyn);
@@ -33,9 +34,9 @@ main(int argc, char * argv[])
 
     delete(hash);
 
-    hash = newFromJson(
-            BIGPOINT_HASH,
-            json_tokener_parse("{\"key1\":123,\"key2\":321}"));
+    json = json_tokener_parse("{\"key1\":123,\"key2\":321}");
+    hash = newFromJson(BIGPOINT_HASH, json);
+    json_object_put(json);
 
     dyn = bigpoint_hash_get(hash, TEST_KEY1);
     printf("%d\n", (dyn->data)._int);