diff --git a/src/cutecoin/core/app.py b/src/cutecoin/core/app.py
index ef02f895b38bafe01302aa0aafb89382d5f61567..7619336a8784e1fa23c4cde772ce8779410d9491 100644
--- a/src/cutecoin/core/app.py
+++ b/src/cutecoin/core/app.py
@@ -53,7 +53,7 @@ class Application(QObject):
         self._network_manager.finished.connect(self.read_available_version)
         self.preferences = {'account': "",
                             'lang': 'en_GB',
-                            'ref': 'Units'
+                            'ref': 0
                             }
 
         self.load()
diff --git a/src/cutecoin/gui/mainwindow.py b/src/cutecoin/gui/mainwindow.py
index 605d12d782000fc465364fef35c56ff754e401a1..72e05de0b39490c9ab139a9aa15eeea25d497ee5 100644
--- a/src/cutecoin/gui/mainwindow.py
+++ b/src/cutecoin/gui/mainwindow.py
@@ -353,6 +353,7 @@ class MainWindow(QMainWindow, Ui_MainWindow):
 
             self.combo_referential.setEnabled(True)
             self.combo_referential.blockSignals(False)
+            logging.debug(self.app.preferences)
             self.combo_referential.setCurrentIndex(self.app.preferences['ref'])
             self.menu_account.setEnabled(True)
             self.action_configure_parameters.setEnabled(True)