diff --git a/README.md b/README.md
index c386e9a..9ca2595 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ Its for being use with the web extension stylus https://add0n.com/stylus.html
 (who is a fork of Stylish). This theme is also available on userstyles.org:
 https://userstyles.org/styles/254893/blueberries-mastodon-ui-user-theme
 
+**Warning**: This theme only support mastodon dark theme
+
 **Note**: Beta support for glitch-soc fork
 
 ## Customization