diff --git a/orientation/orientation.py b/orientation/orientation.py
index f20f1a9..2326839 100644
--- a/orientation/orientation.py
+++ b/orientation/orientation.py
@@ -26,6 +26,8 @@ from qgis.PyQt.QtGui import QIcon
 from qgis.PyQt.QtWidgets import QAction, qApp, QFileDialog, QProgressBar, QMessageBox
 
 from qgis.core import QgsCoordinateReferenceSystem, QgsProject, QgsVectorFileWriter, QgsVectorLayer, QgsFeatureRequest
+from qgis.utils import OverrideCursor
+
 from processing import QgsProcessingException
 
 
@@ -70,7 +72,7 @@ class Orientation:
 
         # Declare instance attributes
         self.actions = []
-        self.menu = self.tr(u'&CaLiÉc')
+        self.menu = self.tr('CaLiEc')
 
         # Check if plugin was started the first time in current QGIS session
         # Must be set in initGui() to survive plugin reloads
@@ -272,15 +274,35 @@ class Orientation:
             # On explose les champs
             layer = processing.run("native:explodehstorefield",
                                    parameters={"INPUT": layers[osm_name],
-                                               "FIELD": "other_tags", "OUTPUT": "memory:"},
+                                               "FIELD": "other_tags",
+                                               "OUTPUT": "memory:"},
+                                   context=context)["OUTPUT"]
+
+            # On enlève les champs en doublons en gardant celui des doublons qui est écrit tout en minuscule
+            field_names = [a.name() for a in layer.fields()]
+            field_names_lower = [a.lower() for a in field_names]
+            expected_fields, deleted_fields = [], []
+            for field_name, field_name_lower in zip(field_names, field_names_lower):
+                if field_names_lower.count(field_name_lower) == 1 or field_name.lower() == field_name:
+                    expected_fields.append(field_name)
+                else:
+                    deleted_fields.append(field_name)
+
+            # On réexplose les champs sans doublons
+            layer = processing.run("native:explodehstorefield",
+                                   parameters={"INPUT": layers[osm_name],
+                                               "FIELD": "other_tags",
+                                               "OUTPUT": "memory:",
+                                               "EXPECTED_FIELDS": ",".join(expected_fields)},
                                    context=context)["OUTPUT"]
 
             # On enregistre le layer dans le gpkg
             options.layerName = layer_name
             code, error = QgsVectorFileWriter.writeAsVectorFormat(layer, str(workDir / "data.gpkg"), options)
             if code != 0:
-                QMessageBox.warning(None, 'Erreur', f"Erreur à l'export de la couche {layer_name} : \n\n{error}")
-                return
+                with OverrideCursor(Qt.ArrowCursor):
+                    QMessageBox.warning(self.iface.mainWindow(), 'Erreur', f"Erreur à l'export de la couche {layer_name} : \n\n{error[:2000]}")
+                    return
             new_layer = QgsVectorLayer(str(workDir / f"data.gpkg|layername={layer_name}"), layer_name)
 
             # Les layers suivants seront enregistrés dans le gpkg déjà existant
@@ -303,3 +325,9 @@ class Orientation:
         self.iface.mapCanvas().refreshAllLayers()
         project.write(str(workDir / 'orient.qgs'))
 
+        if len(deleted_fields) > 0:
+            with OverrideCursor(Qt.ArrowCursor):
+                QMessageBox.warning(self.iface.mainWindow(), "Attention",
+                                    "Les champs suivants sont en doublons et ont été supprimés au profit de leur doublon en minuscule :\n- " +
+                                    "\n - ".join(deleted_fields))
+