diff --git a/alacritty_config_gui.py b/alacritty_config_gui.py
index fd2d989..d5f719d 100644
--- a/alacritty_config_gui.py
+++ b/alacritty_config_gui.py
@@ -31,7 +31,7 @@ def delete_layout_items(layout):
 
 
 class ColorSelect(QtWidgets.QPushButton):
-    self._value = None
+    _value = None
 
     def __init__(self, value):
         super().__init__()