diff --git a/lookup_plugins/colorscheme.py b/lookup_plugins/colorscheme.py
index 50243996..31535dde 100644
--- a/lookup_plugins/colorscheme.py
+++ b/lookup_plugins/colorscheme.py
@@ -6,5 +6,5 @@ class LookupModule(LookupBase):
         base_color = terms[0]
         count = kwargs.get('count')
         shades = kwargs.get('shades')
-        shades = kwargs.get('invert_lightness')
+        invert_lightness = kwargs.get('invert_lightness', False)
         return [generate_full_palette(base_color, count=count, shades=shades, invert_lightness=invert_lightness)]