diff --git a/src/file/csv/TAbstractBuilder.php b/src/file/csv/TAbstractBuilder.php
index 6e16ad2..04e2c75 100644
--- a/src/file/csv/TAbstractBuilder.php
+++ b/src/file/csv/TAbstractBuilder.php
@@ -14,7 +14,7 @@ trait TAbstractBuilder {
       # faire un builder dans le même format que le fichier uploadé
       if ($builder->isExt(".csv")) $class = CsvBuilder::class;
       else $class = static::class;
-      return $class($builder->name);
+      return new $class($builder->name);
     }
     if (is_string($builder)) $builder = ["output" => $builder];
     if (!is_array($builder)) {
@@ -25,6 +25,6 @@ trait TAbstractBuilder {
       $class = CsvBuilder::class;
     }
     if ($class === null) $class = static::class;
-    return $class($builder);
+    return new $class(null, $builder);
   }
 }
diff --git a/src/file/csv/TAbstractReader.php b/src/file/csv/TAbstractReader.php
index f340bac..2cd3189 100644
--- a/src/file/csv/TAbstractReader.php
+++ b/src/file/csv/TAbstractReader.php
@@ -13,7 +13,7 @@ trait TAbstractReader {
     if ($reader instanceof Upload) {
       if ($reader->isExt(".csv")) $class = CsvReader::class;
       else $class = static::class;
-      return $class($reader->tmpName);
+      return new $class($reader->tmpName);
     }
     if (is_string($reader)) $reader = ["input" => $reader];
     if (!is_array($reader)) {
@@ -24,6 +24,6 @@ trait TAbstractReader {
       $class = CsvReader::class;
     }
     if ($class === null) $class = static::class;
-    return $class($reader);
+    return new $class(null, $reader);
   }
 }