diff --git a/orm/dialect_h2.go b/orm/dialect_h2.go
index f8a1157..dd00525 100644
--- a/orm/dialect_h2.go
+++ b/orm/dialect_h2.go
@@ -114,7 +114,7 @@ func (s h2) CurrentDatabase() (name string) {
 
 func (s h2) LastInsertIDReturningSuffix(tableName, key string) string {
 	//return fmt.Sprintf("RETURNING %v.%v", tableName, key)
-	return fmt.Sprintf("")
+	return fmt.Sprintf(" ")
 }
 
 func (h2) SupportLastInsertID() bool {