diff --git a/lib/Db/DematpayslipArchive.php b/lib/Db/DematpayslipArchive.php
index 3f2dfdbc31a1cafafa181ae4e6dcda2139e636f9..d36f68fceac48da040f47cc62f8d3f6fbe54633c 100644
--- a/lib/Db/DematpayslipArchive.php
+++ b/lib/Db/DematpayslipArchive.php
@@ -138,10 +138,10 @@ class DematpayslipArchive extends Entity implements JsonSerializable {
     /**
      * Get operation label from id
      *
-     * @param   int         $id_operation   Operation id
+     * @param   string      $id_operation   Operation id
      * @return  string      Operation label
      */
-    public static function getOperationLabelFrom(int $id_operation) {
+    public static function getOperationLabelFrom($id_operation) {
         $label = '';
 
         $labelList = array(