diff --git a/pymilvus/client/abstract.py b/pymilvus/client/abstract.py
index c200841c1..d0705ef3d 100644
--- a/pymilvus/client/abstract.py
+++ b/pymilvus/client/abstract.py
@@ -37,9 +37,9 @@ def __pack(self, raw: Any):
         self.is_primary = raw.is_primary_key
         self.description = raw.description
         self.auto_id = raw.autoID
-        self.type = raw.data_type
+        self.type = DataType(raw.data_type)
         self.is_partition_key = raw.is_partition_key
-        self.element_type = raw.element_type
+        self.element_type = DataType(raw.element_type)
         try:
             self.is_dynamic = raw.is_dynamic
         except Exception:
@@ -82,9 +82,11 @@ def dict(self):
             "description": self.description,
             "type": self.type,
             "params": self.params or {},
-            "element_type": self.element_type,
         }
 
+        if self.element_type:
+            _dict["element_type"] = self.element_type
+
         if self.is_partition_key:
             _dict["is_partition_key"] = True
         if self.is_dynamic:
diff --git a/pymilvus/orm/schema.py b/pymilvus/orm/schema.py
index db5b9b1bf..f18e2144d 100644
--- a/pymilvus/orm/schema.py
+++ b/pymilvus/orm/schema.py
@@ -229,14 +229,12 @@ def enable_dynamic_field(self, value: bool):
         self._enable_dynamic_field = bool(value)
 
     def to_dict(self):
-        _dict = {
+        return {
             "auto_id": self.auto_id,
             "description": self._description,
             "fields": [s.to_dict() for s in self._fields],
+            "enable_dynamic_field": self.enable_dynamic_field,
         }
-        if self._enable_dynamic_field:
-            _dict["enable_dynamic_field"] = self._enable_dynamic_field
-        return _dict
 
     def verify(self):
         # final check, detect obvious problems