diff --git a/htdocs/core/modules/export/export_csv.modules.php b/htdocs/core/modules/export/export_csv.modules.php
index 79ec096b8de..c3c8431962e 100644
--- a/htdocs/core/modules/export/export_csv.modules.php
+++ b/htdocs/core/modules/export/export_csv.modules.php
@@ -33,7 +33,7 @@ set_time_limit(0);
 class ExportCsv extends ModeleExports
 {
 	/**
-	 * @var int ID
+	 * @var string ID ex: csv, tsv, excel...
 	 */
 	public $id;
 
diff --git a/htdocs/core/modules/export/export_excel.modules.php b/htdocs/core/modules/export/export_excel.modules.php
index 5b8accdae1a..3eafc454530 100644
--- a/htdocs/core/modules/export/export_excel.modules.php
+++ b/htdocs/core/modules/export/export_excel.modules.php
@@ -33,7 +33,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/date.lib.php';
 class ExportExcel extends ModeleExports
 {
 	/**
-	 * @var int ID
+	 * @var string ID
 	 */
 	public $id;
 
diff --git a/htdocs/core/modules/export/export_excel2007.modules.php b/htdocs/core/modules/export/export_excel2007.modules.php
index 46dc8d8fd53..e33849427b1 100644
--- a/htdocs/core/modules/export/export_excel2007.modules.php
+++ b/htdocs/core/modules/export/export_excel2007.modules.php
@@ -34,7 +34,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/date.lib.php';
 class ExportExcel2007 extends ExportExcel
 {
 	/**
-	 * @var int ID
+	 * @var string ID
 	 */
 	public $id;
 
diff --git a/htdocs/core/modules/export/export_excel2007new.modules.php b/htdocs/core/modules/export/export_excel2007new.modules.php
index 29b165cb890..32b6029a294 100644
--- a/htdocs/core/modules/export/export_excel2007new.modules.php
+++ b/htdocs/core/modules/export/export_excel2007new.modules.php
@@ -35,7 +35,7 @@ use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
 class ExportExcel2007new extends ModeleExports
 {
 	/**
-	 * @var int ID
+	 * @var string ID
 	 */
 	public $id;
 
diff --git a/htdocs/core/modules/export/export_tsv.modules.php b/htdocs/core/modules/export/export_tsv.modules.php
index f5b85c6987c..b40da3cd539 100644
--- a/htdocs/core/modules/export/export_tsv.modules.php
+++ b/htdocs/core/modules/export/export_tsv.modules.php
@@ -32,7 +32,7 @@ require_once DOL_DOCUMENT_ROOT .'/core/modules/export/modules_export.php';
 class ExportTsv extends ModeleExports
 {
     /**
-	 * @var int ID
+	 * @var string ID
 	 */
 	public $id;