diff --git a/do.go b/do.go
index 8337dc22..1a695915 100644
--- a/do.go
+++ b/do.go
@@ -5,7 +5,9 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
+
 	"github.com/jinzhu/gorm/dialect"
+
 	"reflect"
 	"regexp"
 	"strconv"
@@ -222,9 +224,18 @@ func (s *Do) convertToMapInterface(values interface{}) map[string]interface{} {
 			}
 		}
 	case interface{}:
-		m := &Model{data: values, do: s}
-		for _, field := range m.columnsHasValue("other") {
-			attrs[field.dbName] = field.Value
+		reflect_value := reflect.ValueOf(values)
+
+		switch reflect_value.Kind() {
+		case reflect.Map:
+			for _, key := range reflect_value.MapKeys() {
+				attrs[toSnake(key.Interface().(string))] = reflect_value.MapIndex(key).Interface()
+			}
+		default:
+			m := &Model{data: values, do: s}
+			for _, field := range m.columnsHasValue("other") {
+				attrs[field.dbName] = field.Value
+			}
 		}
 	}
 	return attrs
diff --git a/gorm_test.go b/gorm_test.go
index 1bc7c682..31e0480d 100644
--- a/gorm_test.go
+++ b/gorm_test.go
@@ -5,9 +5,11 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
+
 	_ "github.com/go-sql-driver/mysql"
 	_ "github.com/lib/pq"
 	_ "github.com/mattn/go-sqlite3"
+
 	"os"
 	"reflect"
 	"strconv"
@@ -937,7 +939,7 @@ func TestUpdates(t *testing.T) {
 		t.Errorf("Product cde should be renamed to edf")
 	}
 
-	db.Table("products").Where("code in (?)", []string{"abc"}).Updates(map[string]interface{}{"code": "fgh", "price": 200})
+	db.Table("products").Where("code in (?)", []string{"abc"}).Updates(map[string]string{"code": "fgh", "price": "200"})
 	if db.First(&Product{}, "code = 'abc'").Error == nil {
 		t.Errorf("Product abc's code should be changed to fgh")
 	}