diff --git a/VERSION b/VERSION
index bff78cca..915f9513 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-xorm v0.4.3.0812
+xorm v0.4.3.0824
diff --git a/session.go b/session.go
index 3e26bba6..a8f53117 100644
--- a/session.go
+++ b/session.go
@@ -2998,16 +2998,20 @@ func (session *Session) value2Interface(col *core.Column, fieldValue reflect.Val
 			return tf, nil
 		}
 
-		if fieldTable, ok := session.Engine.Tables[fieldValue.Type()]; ok {
-			if len(fieldTable.PrimaryKeys) == 1 {
-				pkField := reflect.Indirect(fieldValue).FieldByName(fieldTable.PKColumns()[0].FieldName)
-				return pkField.Interface(), nil
+		if !col.SQLType.IsJson() {
+			// !<winxxp>! 增加支持driver.Valuer接口的结构，如sql.NullString
+			if v, ok := fieldValue.Interface().(driver.Valuer); ok {
+				return v.Value()
 			}
-			return 0, fmt.Errorf("no primary key for col %v", col.Name)
-		}
-		// !<winxxp>! 增加支持driver.Valuer接口的结构，如sql.NullString
-		if v, ok := fieldValue.Interface().(driver.Valuer); ok {
-			return v.Value()
+
+			fieldTable := session.Engine.autoMapType(fieldValue)
+			//if fieldTable, ok := session.Engine.Tables[fieldValue.Type()]; ok {
+				if len(fieldTable.PrimaryKeys) == 1 {
+					pkField := reflect.Indirect(fieldValue).FieldByName(fieldTable.PKColumns()[0].FieldName)
+					return pkField.Interface(), nil
+				}
+				return 0, fmt.Errorf("no primary key for col %v", col.Name)
+			//}
 		}
 
 		if col.SQLType.IsText() {
diff --git a/xorm.go b/xorm.go
index df4f3c18..4f4d8938 100644
--- a/xorm.go
+++ b/xorm.go
@@ -17,7 +17,7 @@ import (
 )
 
 const (
-	Version string = "0.4.3.0812"
+	Version string = "0.4.3.0824"
 )
 
 func regDrvsNDialects() bool {