diff --git a/smt-csv-core/src/main/scala/org/bitlap/csv/core/ScalableBuilder.scala b/smt-csv-core/src/main/scala/org/bitlap/csv/core/ScalableBuilder.scala
index 7d710b38ad5a5ab38bdd36688a37eac65bc204a6..1c2180a85e4f86023d5ddc368470f415405c1669 100644
--- a/smt-csv-core/src/main/scala/org/bitlap/csv/core/ScalableBuilder.scala
+++ b/smt-csv-core/src/main/scala/org/bitlap/csv/core/ScalableBuilder.scala
@@ -78,7 +78,8 @@ class ScalableBuilder[T] {
    * @param charset String charset of the CSV file content.
    * @return
    */
-  def convertFrom(file: InputStream, charset: String): List[Option[T]] = macro DeriveScalableBuilder.convertFromFileImpl[T]
+  def convertFrom(file: InputStream, charset: String): List[Option[T]] =
+    macro DeriveScalableBuilder.convertFromFileImpl[T]
 
 }