diff --git a/src/rougail/output_display/display.py b/src/rougail/output_display/display.py
index 5ea62706..263069bf 100644
--- a/src/rougail/output_display/display.py
+++ b/src/rougail/output_display/display.py
@@ -38,6 +38,7 @@ class RougailOutputDisplay:
         user_data_warnings: Optional[list] = None,
         config_owner_is_path: bool = False,
         layer_datas=None,
+        true_config=None,
         **kwargs,
     ) -> None:
         if rougailconfig is None:
@@ -45,6 +46,10 @@ class RougailOutputDisplay:
             rougailconfig = RougailConfig
         self.rougailconfig = rougailconfig
         self.config = config
+        if true_config is None:
+            self.true_config = config
+        else:
+            self.true_config = true_config
         self.root_config = root_config
         self.layer_datas = layer_datas
         self.config_owner_is_path = config_owner_is_path
@@ -64,11 +69,11 @@ class RougailOutputDisplay:
     def run(self) -> str:
         self.is_mandatory = self.rougailconfig["display.mandatory"]
         if self.is_mandatory:
-            ori_properties = self.config.property.exportation()
-            self.config.property.read_write()
+            ori_properties = self.true_config.property.exportation()
+            self.true_config.property.read_write()
             if not self.user_data_errors and not self.errors:
                 self.mandatories()
-            self.config.property.importation(ori_properties)
+            self.true_config.property.importation(ori_properties)
         output_format = self.rougailconfig["display.output_format"]
         output = OutPuts().get()[output_format](self.rougailconfig)
         warnings = self.user_data_warnings + self.warnings