diff --git a/css/custom.css b/css/custom.css
index c0ae7380..b789e76f 100644
--- a/css/custom.css
+++ b/css/custom.css
@@ -1,4 +1,4 @@
-@media (prefers-color-scheme: light) {
+@media (prefers-color-scheme: dark) {
   html {
       filter: invert(80%);
   }