diff --git a/gui/mainFrame.py b/gui/mainFrame.py
index 6d0d87ce9..6f89df091 100644
--- a/gui/mainFrame.py
+++ b/gui/mainFrame.py
@@ -372,7 +372,8 @@ class MainFrame(wx.Frame):
 
     def showPreferenceDialog(self, event):
         dlg = PreferenceDialog(self)
-        dlg.Show()
+        dlg.ShowModal()
+        dlg.Destroy()
 
     def goWiki(self, event):
         wx.LaunchDefaultBrowser('https://github.com/DarkFenX/Pyfa/wiki')
diff --git a/gui/preferenceDialog.py b/gui/preferenceDialog.py
index c3a1f9f1a..4061f2731 100644
--- a/gui/preferenceDialog.py
+++ b/gui/preferenceDialog.py
@@ -33,8 +33,8 @@ class PreferenceDialog(wx.Dialog):
         self.listbook = wx.Listbook(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.LB_DEFAULT)
 
         self.listview = self.listbook.GetListView()
-        self.listview.SetMinSize((500, -1))
-        self.listview.SetSize((500, -1))
+        #self.listview.SetMinSize((500, -1))
+        #self.listview.SetSize((500, -1))
 
         self.imageList = wx.ImageList(32,32)
         self.listbook.SetImageList(self.imageList)
@@ -77,4 +77,4 @@ class PreferenceDialog(wx.Dialog):
         self.btnOK.Bind(wx.EVT_BUTTON, self.OnBtnOK)
 
     def OnBtnOK(self, event):
-        self.Destroy()
\ No newline at end of file
+        self.Destroy()