diff --git a/src/styles/expressive-code.css b/src/styles/expressive-code.css
index b5f43219b..4a1908c87 100644
--- a/src/styles/expressive-code.css
+++ b/src/styles/expressive-code.css
@@ -50,7 +50,7 @@ html .expressive-code-overrides .expressive-code .copy button div {
 	--tmLineBrdCol: hsl(222.77deg 38.21% 51.76% / 55.57%);
 }
 
-html[data-theme="dark"].dark
+html[data-theme="dark"]
 	.expressive-code-overrides
 	.expressive-code
 	.ec-line.mark {