diff --git a/main.py b/main.py
index 0ea71c9..3fe1704 100644
--- a/main.py
+++ b/main.py
@@ -11,11 +11,14 @@ if __name__ == "__main__":
     import sys
 
     app = QtWidgets.QApplication(sys.argv)
-    translationFiles = glob.glob("i18n/*.qm")
     translator = QtCore.QTranslator()
-    for translationFile in translationFiles:
-        translator.load(translationFile)
-        app.installTranslator(translator)
+    # get system locale
+    systemLocale = QtCore.QLocale.system().name()
+    translationFile = "i18n/{}".format(systemLocale)
+    # load translation file and install translator
+    translator.load(translationFile)
+    app.installTranslator(translator)
+    # fire up main ui
     ui = MainWindow()
     ui.show()
     sys.exit(app.exec_())
diff --git a/ui/mplwidget.py b/ui/mplwidget.py
index c4d989f..a4e4af1 100644
--- a/ui/mplwidget.py
+++ b/ui/mplwidget.py
@@ -5,6 +5,7 @@ from matplotlib.backends.backend_qt5agg import (FigureCanvasQTAgg as
 from matplotlib.backends.backend_qt5agg import (NavigationToolbar2QT as
                                                 NavigationToolbar)
 from matplotlib.figure import Figure
+_translate = QCoreApplication.translate
 
 
 class MplCanvas(FigureCanvas):
@@ -30,13 +31,13 @@ class MplCanvas(FigureCanvas):
 
 class CustomNavigationToolbar(NavigationToolbar):
     toolitems = (
-        (QCoreApplication.translate("CustomNavigationToolbar", 'Save'),
-         QCoreApplication.translate("CustomNavigationToolbar",
-                                    'Save the figure'), 'filesave',
+        (_translate("CustomNavigationToolbar", 'Save'),
+         _translate("CustomNavigationToolbar",
+                    'Save the figure'), 'filesave',
          'save_figure'),
-        (QCoreApplication.translate("CustomNavigationToolbar", 'Subplots'),
-         QCoreApplication.translate("CustomNavigationToolbar",
-                                    'Configure subplots'), 'subplots',
+        (_translate("CustomNavigationToolbar", 'Subplots'),
+         _translate("CustomNavigationToolbar",
+                    'Configure subplots'), 'subplots',
          'configure_subplots'), (None, None, None, None), )
 
     def __init__(self, canvas, parent, coordinates=True):