diff --git a/common/spinner.py b/common/spinner.py
index 370d54c815..da8084037e 100644
--- a/common/spinner.py
+++ b/common/spinner.py
@@ -40,7 +40,7 @@ class Spinner():
     self.close()
 
 
-class FakeSpinner(Spinner):
+class FakeSpinner():
   def __init__(self):
     pass
 
diff --git a/common/text_window.py b/common/text_window.py
index 50fdcb6440..0d94bc7470 100755
--- a/common/text_window.py
+++ b/common/text_window.py
@@ -43,7 +43,7 @@ class TextWindow():
     self.close()
 
 
-class FakeTextWindow(TextWindow):
+class FakeTextWindow():
   def __init__(self, s):
     pass