diff --git a/gui/mainFrame.py b/gui/mainFrame.py
index 002c6da23..ff6832a23 100644
--- a/gui/mainFrame.py
+++ b/gui/mainFrame.py
@@ -73,7 +73,7 @@ class MainFrame(wx.Frame):
 
         self.splitter = wx.SplitterWindow(self, style = wx.SP_LIVE_UPDATE)
 
-        mainSizer.Add(self.splitter,1,wx.EXPAND)
+        mainSizer.Add(self.splitter,1,wx.EXPAND | wx.LEFT, 2)
 
         self.FitviewAdditionsPanel = PFPanel(self.splitter)
         faSizer = wx.BoxSizer(wx.VERTICAL)