diff --git a/README.markdown b/README.markdown
index 646ee1a..00c5b86 100644
--- a/README.markdown
+++ b/README.markdown
@@ -110,11 +110,13 @@ let g:thematic#themes = {
 \                },
 \ 'solar_dark' : { 'colorscheme': 'solarized',
 \                  'typeface': 'Source Code Pro Light',
+\                  'background': 'dark',
 \                  'font-size': 20,
 \                  'linespace': 8,
 \                },
 \ 'solar_lite' : { 'colorscheme': 'solarized',
 \                  'typeface': 'Source Code Pro',
+\                  'background': 'light',
 \                  'font-size': 20,
 \                  'linespace': 6,
 \                },