diff --git a/alacritty_config_gui.py b/alacritty_config_gui.py
index 0e1cb00..37bb741 100644
--- a/alacritty_config_gui.py
+++ b/alacritty_config_gui.py
@@ -67,7 +67,8 @@ class ColorSelect(QtWidgets.QPushButton):
         self.update()
 
     def value(self):
-        return self._value.replace('#', '0x')
+        if self._value:
+            return self._value.replace('#', '0x')
 
 
 class FontSelect(QtWidgets.QPushButton):