diff --git a/gui/graphFrame/frame.py b/gui/graphFrame/frame.py
index 033957113..716d934bb 100644
--- a/gui/graphFrame/frame.py
+++ b/gui/graphFrame/frame.py
@@ -220,6 +220,7 @@ class GraphFrame(wx.Frame):
             except Exception as ex:
                 pyfalog.warning('Invalid values in "{0}"', fit.name)
                 self.canvas.draw()
+                self.Refresh()
                 return
 
         # Special case for when we do not show Y = 0 and have no fits