diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py
index f0c5aa170..eaeebfba8 100644
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@@ -44,6 +44,8 @@ from openlp.core.utils.actions import ActionList, CategoryOrder
 
 log = logging.getLogger(__name__)
 
+# Threshold which has to be trespassed to toggle.
+HIDE_MENU_THRESHOLD  = 27
 AUDIO_TIME_LABEL_STYLESHEET = u'background-color: palette(background); ' \
     u'border-top-color: palette(shadow); ' \
     u'border-left-color: palette(shadow); ' \
@@ -588,12 +590,12 @@ class SlideController(DisplayController):
         if self.is_live:
             # Space used by the toolbar.
             used_space = self.toolbar.size().width() + self.hide_menu.size().width()
-            # The + 40 is needed to prevent flickering. This can be considered a "buffer".
-            if width > used_space + 40 and self.hide_menu.isVisible():
+            # Add the threshold to prevent flickering.
+            if width > used_space + HIDE_MENU_THRESHOLD and self.hide_menu.isVisible():
                 self.toolbar.set_widget_visible(self.narrow_menu, False)
                 self.toolbar.set_widget_visible(self.wide_menu)
-            # The - 40 is needed to prevent flickering. This can be considered a "buffer".
-            elif width < used_space - 40 and not self.hide_menu.isVisible():
+            # Take away a threshold to prevent flickering.
+            elif width < used_space - HIDE_MENU_THRESHOLD and not self.hide_menu.isVisible():
                 self.toolbar.set_widget_visible(self.wide_menu, False)
                 self.toolbar.set_widget_visible(self.narrow_menu)