diff --git a/openlp/core/ui/advancedtab.py b/openlp/core/ui/advancedtab.py
index 361baa5cb..54bb69496 100644
--- a/openlp/core/ui/advancedtab.py
+++ b/openlp/core/ui/advancedtab.py
@@ -491,7 +491,7 @@ class AdvancedTab(SettingsTab):
             x11_bypass_default = bool(not
                 os.environ.get(u'GNOME_DESKTOP_SESSION_ID'))
             # Default to False on XFce
-            if os.environ.get(u'DESKTOP_SESSION') == 'xfce':
+            if os.environ.get(u'DESKTOP_SESSION') == u'xfce':
                 x11_bypass_default = False
         self.x11BypassCheckBox.setChecked(settings.value(
             u'x11 bypass wm', QtCore.QVariant(x11_bypass_default)).toBool())
diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index 69b210e84..eb0c3911b 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -144,7 +144,7 @@ class MainDisplay(Display):
             x11_bypass_default = bool(not
                 os.environ.get(u'GNOME_DESKTOP_SESSION_ID'))
             # Default to False on XFce
-            if os.environ.get(u'DESKTOP_SESSION') == 'xfce':
+            if os.environ.get(u'DESKTOP_SESSION') == u'xfce':
                 x11_bypass_default = False
         if Settings().value(u'advanced/x11 bypass wm',
             QtCore.QVariant(x11_bypass_default)).toBool():