diff --git a/apps/maarch_entreprise/definition_mail_categories.php b/apps/maarch_entreprise/definition_mail_categories.php
index df829050a7816c926ced23b96c8eac9c04899304..178f4171be793efac3b0f9e14f069f3377858fb6 100644
--- a/apps/maarch_entreprise/definition_mail_categories.php
+++ b/apps/maarch_entreprise/definition_mail_categories.php
@@ -279,8 +279,8 @@ $_ENV['categories']['outgoing'] = array();
 $_ENV['categories']['outgoing']['img_cat'] = '<i class="fa fa-arrow-left fa-2x"></i>';
 $_ENV['categories']['outgoing']['other_cases'] = array();
 $_ENV['categories']['outgoing']['priority'] = array(
-    'type_form' => 'integer',
-    'type_field' => 'integer',
+    'type_form' => 'string',
+    'type_field' => 'string',
     'mandatory' => false,
     'label' => _PRIORITY,
     'table' => 'res',
@@ -401,8 +401,8 @@ $_ENV['categories']['internal'] = array();
 $_ENV['categories']['internal']['img_cat'] = '<i class="fa fa-arrow-down fa-2x"></i>';
 $_ENV['categories']['internal']['other_cases'] = array();
 $_ENV['categories']['internal']['priority'] = array(
-    'type_form' => 'integer',
-    'type_field' => 'integer',
+    'type_form' => 'string',
+    'type_field' => 'string',
     'mandatory' => false,
     'label' => _PRIORITY,
     'table' => 'res',