diff --git a/main.go b/main.go
index 67e5f58e5..eac28f8ab 100644
--- a/main.go
+++ b/main.go
@@ -209,8 +209,8 @@ func (s *DB) NewScope(value interface{}) *Scope {
 	return scope
 }
 
-// QueryExpr returns the query as expr object
-func (s *DB) QueryExpr() *expr {
+// QueryExpr returns the query as SqlExpr object
+func (s *DB) QueryExpr() *SqlExpr {
 	scope := s.NewScope(s.Value)
 	scope.InstanceSet("skip_bindvar", true)
 	scope.prepareQuerySQL()
@@ -219,7 +219,7 @@ func (s *DB) QueryExpr() *expr {
 }
 
 // SubQuery returns the query as sub query
-func (s *DB) SubQuery() *expr {
+func (s *DB) SubQuery() *SqlExpr {
 	scope := s.NewScope(s.Value)
 	scope.InstanceSet("skip_bindvar", true)
 	scope.prepareQuerySQL()
diff --git a/scope.go b/scope.go
index e64a8ba8e..eb7525b88 100644
--- a/scope.go
+++ b/scope.go
@@ -257,7 +257,7 @@ func (scope *Scope) CallMethod(methodName string) {
 func (scope *Scope) AddToVars(value interface{}) string {
 	_, skipBindVar := scope.InstanceGet("skip_bindvar")
 
-	if expr, ok := value.(*expr); ok {
+	if expr, ok := value.(*SqlExpr); ok {
 		exp := expr.expr
 		for _, arg := range expr.args {
 			if skipBindVar {
@@ -785,7 +785,7 @@ func (scope *Scope) orderSQL() string {
 	for _, order := range scope.Search.orders {
 		if str, ok := order.(string); ok {
 			orders = append(orders, scope.quoteIfPossible(str))
-		} else if expr, ok := order.(*expr); ok {
+		} else if expr, ok := order.(*SqlExpr); ok {
 			exp := expr.expr
 			for _, arg := range expr.args {
 				exp = strings.Replace(exp, "?", scope.AddToVars(arg), 1)
@@ -912,7 +912,7 @@ func (scope *Scope) updatedAttrsWithValues(value interface{}) (results map[strin
 
 	for key, value := range convertInterfaceToMap(value, true, scope.db) {
 		if field, ok := scope.FieldByName(key); ok && scope.changeableField(field) {
-			if _, ok := value.(*expr); ok {
+			if _, ok := value.(*SqlExpr); ok {
 				hasUpdate = true
 				results[field.DBName] = value
 			} else {
diff --git a/search.go b/search.go
index 901385956..7c4cc184a 100644
--- a/search.go
+++ b/search.go
@@ -98,7 +98,7 @@ func (s *search) Group(query string) *search {
 }
 
 func (s *search) Having(query interface{}, values ...interface{}) *search {
-	if val, ok := query.(*expr); ok {
+	if val, ok := query.(*SqlExpr); ok {
 		s.havingConditions = append(s.havingConditions, map[string]interface{}{"query": val.expr, "args": val.args})
 	} else {
 		s.havingConditions = append(s.havingConditions, map[string]interface{}{"query": query, "args": values})
diff --git a/utils.go b/utils.go
index e58e57a56..d2ae9465d 100644
--- a/utils.go
+++ b/utils.go
@@ -58,15 +58,15 @@ func newSafeMap() *safeMap {
 }
 
 // SQL expression
-type expr struct {
+type SqlExpr struct {
 	expr string
 	args []interface{}
 }
 
 // Expr generate raw SQL expression, for example:
 //     DB.Model(&product).Update("price", gorm.Expr("price * ? + ?", 2, 100))
-func Expr(expression string, args ...interface{}) *expr {
-	return &expr{expr: expression, args: args}
+func Expr(expression string, args ...interface{}) *SqlExpr {
+	return &SqlExpr{expr: expression, args: args}
 }
 
 func indirect(reflectValue reflect.Value) reflect.Value {