diff --git a/Configuration.md b/Configuration.md
index ac87722..687fa9a 100644
--- a/Configuration.md
+++ b/Configuration.md
@@ -41,7 +41,7 @@ default: `orange`
 
 ### g:gruvbox_number_column
 Changes number column background color. Possible values are any of gruvbox palette.  
-default: `NONE`
+default: `none`
 
 ### g:gruvbox_sign_column
 Changes sign column background color. Possible values are any of gruvbox palette.