diff --git a/.gitignore b/.gitignore
index 9b41e9d..72b5e14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,5 @@ chapter22_type_hints/.mypy_cache/
 *.pyc
 *.zip
 *.db
-*.pdf
\ No newline at end of file
+*.pdf
+*.mypy_cache
\ No newline at end of file
diff --git a/chapter42_gui/image_viewer_working.py b/chapter42_gui/image_viewer_working.py
index 8e4dec4..3abd01f 100644
--- a/chapter42_gui/image_viewer_working.py
+++ b/chapter42_gui/image_viewer_working.py
@@ -9,7 +9,7 @@ def __init__(self, parent, image_size):
         self.max_size = 240
 
         img = wx.Image(*image_size)
-        self.image_ctrl = wx.StaticBitmap(self, 
+        self.image_ctrl = wx.StaticBitmap(self,
                                           bitmap=wx.Bitmap(img))
 
         browse_btn = wx.Button(self, label='Browse')
@@ -39,7 +39,7 @@ def on_browse(self, event):
                            wildcard=wildcard,
                            style=wx.ID_OPEN) as dialog:
             if dialog.ShowModal() == wx.ID_OK:
-                self.photo_txt.SetValue(dialog.GetPath())
+                self.photo_txt.SetValue(dialog.GetPaths()[0])
                 self.load_image()
 
     def load_image(self):