diff --git a/src/views/chat/components/Message/style.less b/src/views/chat/components/Message/style.less
index ba8be1b..ebdbad4 100644
--- a/src/views/chat/components/Message/style.less
+++ b/src/views/chat/components/Message/style.less
@@ -61,6 +61,7 @@
 html.dark {
 
 	.highlight pre,
+	.katexmath-block,
 	pre {
 		background-color: #282c34;
 	}